# CVE-2026-56211: Libaom: libaom: remote code execution via svc layer context handling with attacker-controlled frames

Status: published. Published: 2026-06-19. Updated: 2026-11-04.

A remote code execution vulnerability was found in libaom, the reference AV1 codec implementation. Insufficient bounds validation in the AV1 encoder's SVC (Scalable Video Coding) layer ID control allows an attacker to supply crafted video frame pixels that overlap with internal encoder layer context structures. In fork-based video processing services, an attacker can use this to hijack the cyclic refresh map pointer, brute-force the process base address via a crash oracle, and redirect control flow to achieve arbitrary command execution. Exploitation requires the target service to use libaom with SVC encoding enabled and accept attacker-supplied video frames.

## Remediation

- workaround: There is no complete mitigation for this vulnerability. The following measures can reduce risk:

1. If using libaom as a standalone encoder in a fork-based service, validate all SVC layer parameters (spatial_layer_id, temporal_layer_id) against configured bounds before passing them to the encoder API.
2. Avoid fork-based architectures for encoding services that accept untrusted input. Use thread-based or container-isolated workers instead, which prevent crash oracle attacks.
3. Restrict access to encoding services to trusted clients only. Do not expose SVC encoder configuration or frame submission to untrusted network input.
4. For Firefox and Thunderbird, ensure browsers are updated to versions that include the patched libaom (v3.14.0 or later).
5. Enable all available exploit mitigations (ASLR, PIE, stack canaries, CFI) on encoding service binaries. (source: CNA: redhat)
- fix: RHSA-2026:51100: Red Hat Enterprise Linux AI 3.3 for RHEL 9

RHSA-2026:51146: Red Hat Enterprise Linux AI 3.4 for RHEL 9

RHSA-2026:42875: Red Hat Enterprise Linux AI 3.5 for RHEL 9

RHSA-2026:61628: Red Hat AI Inference Server 3.2

RHSA-2026:61627: Red Hat AI Inference Server 3.2

RHSA-2026:61629: Red Hat AI Inference Server 3.2

RHSA-2026:30814: Red Hat Hardened Images

RHSA-2026:60520: Red Hat OpenShift AI 3.4 (source: ADP: redhat-SADP)
- workaround: There is no complete mitigation for this vulnerability. The following measures can reduce risk:

1. If using libaom as a standalone encoder in a fork-based service, validate all SVC layer parameters (spatial_layer_id, temporal_layer_id) against configured bounds before passing them to the encoder API.
2. Avoid fork-based architectures for encoding services that accept untrusted input. Use thread-based or container-isolated workers instead, which prevent crash oracle attacks.
3. Restrict access to encoding services to trusted clients only. Do not expose SVC encoder configuration or frame submission to untrusted network input.
4. For Firefox and Thunderbird, ensure browsers are updated to versions that include the patched libaom (v3.14.0 or later).
5. Enable all available exploit mitigations (ASLR, PIE, stack canaries, CFI) on encoding service binaries. (source: ADP: redhat-SADP)

## Affected products and versions

- Red Hat / Red Hat Enterprise Linux AI 3.3 for RHEL 9 (aom): ≥ 0:3.14.0-1.el9ai; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux AI 3.4 for RHEL 9 (aom): ≥ 0:3.14.0-1.el9ai; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux AI 3.5 for RHEL 9 (aom): ≥ 0:3.14.0-1.el9ai; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server 3.2 (rhaiis/vllm-cuda-rhel9): ≥ 1787860580; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server 3.2 (rhaiis/model-opt-cuda-rhel9): ≥ 1787772157; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server 3.2 (rhaiis/vllm-rocm-rhel9): ≥ 1787884873; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server 3.3 (rhaiis/model-opt-cuda-rhel9): ≥ 1789508287; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server 3.3 (rhaiis/vllm-spyre-rhel9): ≥ 1789502493; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server 3.3 (rhaiis/vllm-rocm-rhel9): ≥ 1789504371; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server 3.3 (rhaiis/vllm-cuda-rhel9): ≥ 1789582776; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux AI 3.3 (rhelai3/bootc-aws-cuda-rhel9): ≥ 1790936334; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux AI 3.3 (rhelai3/bootc-azure-cuda-rhel9): ≥ 1790936351; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux AI 3.3 (rhelai3/bootc-azure-rocm-rhel9): ≥ 1790850900; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux AI 3.3 (rhelai3/bootc-cuda-rhel9): ≥ 1790866732; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux AI 3.3 (rhelai3/bootc-gcp-cuda-rhel9): ≥ 1790936334; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux AI 3.3 (rhelai3/bootc-rocm-rhel9): ≥ 1790791893; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux AI 3.3 (rhelai3/disk-image-cuda-rhel9): ≥ 1790954179; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Hardened Images (aom-main): ≥ 3.14.0-0.1.hum1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.3 (rhai/base-image-neuron-rhel9): ≥ 1789137552; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.3 (rhai/base-image-rocm-7.0-rhel9): ≥ 1789137548; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.3 (rhai/base-image-cuda-13.0-rhel9): ≥ 1789137636; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.3 (rhai/base-image-tpu-rhel9): ≥ 1789137548; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.3 (rhai/base-image-rocm-6.4-rhel9): ≥ 1789137548; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.3 (rhai/base-image-cpu-rhel9): ≥ 1789137641; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.3 (rhai/base-image-spyre-rhel9): ≥ 1789137607; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.3 (rhai/base-image-cuda-12.9-rhel9): ≥ 1789137636; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhoai/odh-mlserver-rhel9): ≥ 1786611800; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhoai/odh-th06-cpu-torch210-py312-rhel9): ≥ 1787076778; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhoai/odh-th06-cuda130-torch210-py312-rhel9): ≥ 1787077779; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhoai/odh-th06-rocm64-torch291-py312-rhel9): ≥ 1787076481; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhai/base-image-tpu-rhel9): ≥ 1788197680; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhai/base-image-cpu-rhel9): ≥ 1788197530; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhai/base-image-gaudi-rhel9): ≥ 1788197632; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhai/base-image-spyre-rhel9): ≥ 1788197747; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhai/base-image-rocm-7.1-rhel9): ≥ 1788197549; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhai/base-image-cuda-12.9-rhel9): ≥ 1788199622; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhai/base-image-cuda-13.0-rhel9): ≥ 1788197744; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhai/base-image-rocm-6.4-rhel9): ≥ 1788197677; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhoai/odh-trustyai-garak-lls-provider-dsp-rhel9): ≥ 1791785804; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-neuron-rhel9): ≥ 1788198404; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-cpu-rhel9): ≥ 1788198407; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-tpu-rhel9): ≥ 1788197492; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-gaudi-rhel9): ≥ 1788197542; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-cuda-13.0-rhel9): ≥ 1788197975; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-rubin-rhel9): ≥ 1788197512; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-spyre-rhel9): ≥ 1788197688; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-cuda-12.9-rhel9): ≥ 1788197385; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-rocm-7.14-rhel9): ≥ 1788198016; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-gaudi-rhel9): ≥ 1790703552; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-cpu-rhel9): ≥ 1790703656; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-neuron-rhel9): ≥ 1790703557; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-cuda-13.0-rhel9): ≥ 1790703645; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-tpu-rhel9): ≥ 1790703554; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-rocm-7.14-rhel9): ≥ 1790703554; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-spyre-rhel9): ≥ 1790703630; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.5 (rhai/base-image-cuda-12.9-rhel9): ≥ 1790703706; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server (rhaii/model-opt-cuda-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server (rhaiis/vllm-cpu-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server (rhaiis/vllm-neuron-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server (rhaiis/vllm-tpu-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-cpu-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-cuda-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-gaudi-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-neuron-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-rocm-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-spyre-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-tpu-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (firefox): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (thunderbird): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (firefox): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (thunderbird): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-automl-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-autorag-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-kserve-autogluon-server-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-llama-stack-core-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-llm-d-kv-cache-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-spark-operator-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-th06-cpu-torch291-py312-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-th06-cuda130-torch291-py312-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-jupyter-datascience-cpu-py312-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-jupyter-minimal-cpu-py312-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-jupyter-minimal-cuda-py312-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-jupyter-minimal-rocm-py312-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux AI 3.3 for RHEL 9 (aom): ≥ 0:3.14.0-1.el9ai; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux AI 3.4 for RHEL 9 (aom): ≥ 0:3.14.0-1.el9ai; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux AI 3.5 for RHEL 9 (aom): ≥ 0:3.14.0-1.el9ai; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Hardened Images (aom-main): ≥ 3.14.0-0.1.hum1; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI 3.4 (rhoai/odh-mlserver-rhel9): ≥ 1786611800; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI 3.4 (rhoai/odh-th06-cpu-torch210-py312-rhel9): ≥ 1787076778; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI 3.4 (rhoai/odh-th06-cuda130-torch210-py312-rhel9): ≥ 1787077779; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI 3.4 (rhoai/odh-th06-rocm64-torch291-py312-rhel9): ≥ 1787076481; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaii/model-opt-cuda-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaiis/model-opt-cuda-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaiis/vllm-cpu-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaiis/vllm-cuda-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaiis/vllm-neuron-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaiis/vllm-rocm-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaiis/vllm-spyre-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaiis/vllm-tpu-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-cpu-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-cuda-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-gaudi-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-neuron-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-rocm-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-spyre-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server (rhaii/vllm-tpu-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 10 (firefox): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 10 (thunderbird): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 9 (firefox): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 9 (thunderbird): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhai/base-image-cpu-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhai/base-image-cuda-12.9-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhai/base-image-cuda-13.0-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhai/base-image-gaudi-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhai/base-image-neuron-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhai/base-image-rocm-6.4-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhai/base-image-rocm-7.0-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhai/base-image-rocm-7.1-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhai/base-image-spyre-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhai/base-image-tpu-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-automl-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-autorag-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-kserve-autogluon-server-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-llama-stack-core-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-llm-d-kv-cache-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-spark-operator-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-th06-cpu-torch291-py312-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-th06-cuda130-torch291-py312-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-trustyai-garak-lls-provider-dsp-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-jupyter-datascience-cpu-py312-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-jupyter-minimal-cpu-py312-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-jupyter-minimal-cuda-py312-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-jupyter-minimal-rocm-py312-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift AI (RHOAI) (rhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9): Version range not reported. Source: ADP: redhat-SADP

## Severity and prioritization

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:H; source: CNA: redhat

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:H; source: ADP: redhat-SADP

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:H; source: NVD: secalert@redhat.com

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:H; source: NVD: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

- CISA KEV: No listing in collected sources

- EPSS: 0.88% as of 2026-11-04; percentile 59.13%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-787

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2026:30814 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:42875 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:51100 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:51146 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:60520 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:61627 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:61628 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:61629 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68634 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68637 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68638 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68639 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68640 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68696 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68697 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68698 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68699 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68708 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68709 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:68710 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:69927 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:69929 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:69930 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:69931 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:69932 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:69933 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:69934 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:69935 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71392 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71393 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71394 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71395 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71396 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71397 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71398 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71399 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:71401 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:74771 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:75652 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:75654 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:75657 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:75658 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:75659 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:75660 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:76041 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:76042 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:76043 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:84734 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-56211 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://aomedia.googlesource.com/aom/+/a93ba0ffaa (CNA: redhat)

- https://bugzilla.redhat.com/show_bug.cgi?id=2490802 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://issues.chromium.org/issues/503993985 (CNA: redhat)

- https://access.redhat.com/security/cve/CVE-2026-56211 (ADP: redhat-SADP; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2490802 (ADP: redhat-SADP; issue-tracking, x_refsource_REDHAT)

- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-56211.json (ADP: redhat-SADP; x_sadp-csaf-vex)

- https://access.redhat.com/errata/RHSA-2026:51100 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:51146 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:42875 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:61628 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:61627 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:61629 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:30814 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:60520 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:30814 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:42875 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:51100 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:51146 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:60520 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:61627 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:61628 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:61629 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68634 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68637 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68638 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68639 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68640 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68696 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68697 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68698 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68699 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68708 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68709 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:68710 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:69927 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:69929 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:69930 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:69931 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:69932 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:69933 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:69934 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:69935 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:71392 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:71393 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:71394 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:71395 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:71396 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:71397 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:71398 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:71399 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:71401 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:74771 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:75652 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:75654 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:75657 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:75658 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:75659 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:75660 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:76041 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:76042 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:76043 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:84734 (secalert@redhat.com)

- https://access.redhat.com/security/cve/CVE-2026-56211 (secalert@redhat.com)

- https://aomedia.googlesource.com/aom/+/a93ba0ffaa (secalert@redhat.com)

- https://bugzilla.redhat.com/show_bug.cgi?id=2490802 (secalert@redhat.com)

- https://issues.chromium.org/issues/503993985 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:30814 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:42875 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:51100 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:51146 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:60520 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:61627 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:61628 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:61629 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/security/cve/CVE-2026-56211 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://bugzilla.redhat.com/show_bug.cgi?id=2490802 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-56211.json (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-56211; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-56211; retrieved 2026-11-05; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-56211; retrieved 2026-11-04; source updated Not reported

Revision: ebfc38cf361f557f33fcb6585d32f99044966c108979b02c4a9fa64f8479c9dc

Canonical: https://y2.dev/cve/CVE-2026-56211

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.