# CVE-2026-56209: Libaom: libaom: arbitrary address write via svc layer context oob and cyclic refresh map pointer hijack

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

An arbitrary address write vulnerability was found in libaom, the reference AV1 codec implementation. A missing bounds check in the SVC (Scalable Video Coding) layer ID control function allows an attacker to inject an arbitrary pointer into the cyclic refresh map field via crafted image pixel values. The encoder then writes approximately 1,200 bytes at the attacker-controlled address. This is fully deterministic and does not require a separate information leak. An attacker who can supply frames to a network-facing libaom encoder with SVC enabled could exploit this for denial of service or potential code execution.

## Remediation

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

1. If using libaom as a standalone encoder library with SVC enabled, validate that spatial_layer_id and temporal_layer_id values are within the configured range [0, configured_layers) before calling aom_codec_control with AV1E_SET_SVC_LAYER_ID.
2. Restrict access to encoding services to trusted clients only. Do not expose libaom SVC encoder configuration to untrusted input.
3. For Firefox and Thunderbird, ensure browsers are updated to versions that include the patched libaom (v3.14.0 or later).
4. Deploy encoding services with ASLR, stack canaries, and other exploit mitigation technologies enabled. (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 library with SVC enabled, validate that spatial_layer_id and temporal_layer_id values are within the configured range [0, configured_layers) before calling aom_codec_control with AV1E_SET_SVC_LAYER_ID.
2. Restrict access to encoding services to trusted clients only. Do not expose libaom SVC encoder configuration to untrusted input.
3. For Firefox and Thunderbird, ensure browsers are updated to versions that include the patched libaom (v3.14.0 or later).
4. Deploy encoding services with ASLR, stack canaries, and other exploit mitigation technologies enabled. (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:L/PR:N/UI:R/S:U/C:N/I:L/A:H; source: CNA: redhat

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

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

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

- CISA KEV: No listing in collected sources

- EPSS: 0.64% as of 2026-11-04; percentile 50.96%

- 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-2026-56209 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

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

- https://bugzilla.redhat.com/show_bug.cgi?id=2490800 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://issues.chromium.org/issues/503993984 (CNA: redhat)

- https://access.redhat.com/security/cve/CVE-2026-56209 (ADP: redhat-SADP; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2490800 (ADP: redhat-SADP; issue-tracking, x_refsource_REDHAT)

- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-56209.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-2026-56209 (secalert@redhat.com)

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

- https://bugzilla.redhat.com/show_bug.cgi?id=2490800 (secalert@redhat.com)

- https://issues.chromium.org/issues/503993984 (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-2026-56209 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://bugzilla.redhat.com/show_bug.cgi?id=2490800 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-56209.json (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-56209; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-56209; retrieved 2026-11-05; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-56209; retrieved 2026-11-04; source updated Not reported

Revision: 7bf69f54e5c9605196a03c141c5df2369828e0c25d2ebf122c63add50b14e9d4

Canonical: https://y2.dev/cve/CVE-2026-56209

## 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.