# CVE-2026-33846: Gnutls: gnutls: denial of service via heap buffer overflow in dtls handshake fragment reassembly

Status: published. Published: 2026-05-04. Updated: 2026-11-04.

A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in merge_handshake_packet() where incoming handshake fragments are matched and merged based solely on handshake type, without validating that the message_length field remains consistent across all fragments of the same logical message. An attacker can exploit this by sending crafted DTLS fragments with conflicting message_length values, causing the implementation to allocate a buffer based on a smaller initial fragment and subsequently write beyond its bounds using larger, inconsistent fragments. Because the merge operation does not enforce proper bounds checking against the allocated buffer size, this results in an out-of-bounds write on the heap. The vulnerability is remotely exploitable without authentication via the DTLS handshake path and can lead to application crashes or potential memory corruption.

## Remediation

- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. (source: CNA: redhat)
- fix: RHSA-2026:34372: Red Hat Enterprise Linux Server (v. 7 ELS)

RHSA-2026:59831: Red Hat OpenShift Container Platform 4.12

RHSA-2026:65839: Red Hat OpenShift Container Platform 4.13

RHSA-2026:56786: Red Hat OpenShift Container Platform 4.14

RHSA-2026:56911: Red Hat OpenShift Container Platform 4.15

RHSA-2026:56853: Red Hat OpenShift Container Platform 4.16

RHSA-2026:60019: Red Hat OpenShift Container Platform 4.17

RHSA-2026:57483: Red Hat OpenShift Container Platform 4.18

RHSA-2026:57402: Red Hat OpenShift Container Platform 4.19

RHSA-2026:26409: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0)

RHSA-2026:20613: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10)

RHSA-2026:20611: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux BaseOS (v. 8)

RHSA-2026:33125: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4), Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)

RHSA-2026:30849: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6), Red Hat Enterprise Linux BaseOS AUS (v.8.6), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)

RHSA-2026:30850: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8), Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8)

RHSA-2026:41921: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.9.2)

RHSA-2026:32962: Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux BaseOS E4S (v.9.4)

RHSA-2026:30004: Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6)

RHSA-2026:20612: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9)

RHSA-2026:36004: Red Hat AI Inference Server 3.2

RHSA-2026:36005: Red Hat AI Inference Server 3.2

RHSA-2026:36006: Red Hat AI Inference Server 3.2

RHSA-2026:29197: Red Hat Discovery 2

RHSA-2026:13274: Red Hat Hardened Images

RHSA-2026:58981: Red Hat Update Infrastructure 5

RHSA-2026:26319: Red Hat Update Infrastructure 5 (source: ADP: redhat-SADP)
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. (source: ADP: redhat-SADP)

## Affected products and versions

- Red Hat / Red Hat Enterprise Linux 10 (gnutls): ≥ 0:3.8.10-4.el10_2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Support (gnutls): ≥ 0:3.8.9-9.el10_0.19; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support (gnutls): ≥ 0:3.3.29-9.el7_9.1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gnutls): ≥ 0:3.6.16-8.el8_10.6; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support (gnutls): ≥ 0:3.6.14-10.el8_4.1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support (libtasn1): ≥ 0:4.13-3.el8_4.1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On (gnutls): ≥ 0:3.6.14-10.el8_4.1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On (libtasn1): ≥ 0:4.13-3.el8_4.1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support (gnutls): ≥ 0:3.6.16-5.el8_6.5; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support (libtasn1): ≥ 0:4.13-3.el8_6.2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On (gnutls): ≥ 0:3.6.16-5.el8_6.5; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On (libtasn1): ≥ 0:4.13-3.el8_6.2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service (gnutls): ≥ 0:3.6.16-7.el8_8.4; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service (libtasn1): ≥ 0:4.13-4.el8_8.1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions (gnutls): ≥ 0:3.6.16-7.el8_8.4; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions (libtasn1): ≥ 0:4.13-4.el8_8.1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (gnutls): ≥ 0:3.8.10-4.el9_8; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions (gnutls): ≥ 0:3.7.6-21.el9_2.7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions (gnutls): ≥ 0:3.8.3-4.el9_4.6; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Support (gnutls): ≥ 0:3.8.3-6.el9_6.4; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4.12 (openshift/ose-rhel-coreos-8): ≥ 412.86.202608241157-0; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4.13 (openshift/ose-rhel-coreos-9): ≥ 413.92.202609080414-0; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4.14 (openshift/ose-rhel-coreos-9): ≥ 414.92.202608172040-0; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4.15 (openshift/ose-rhel-coreos-9): ≥ 415.92.202608180329-0; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4.16 (openshift/ose-rhel-coreos-9): ≥ 416.94.202608150307-0; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4.17 (openshift/ose-rhel-coreos-9): ≥ 417.94.202608250221-0; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4.18 (openshift/ose-rhel-coreos-9): ≥ 418.94.202608142238-0; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4.19 (openshift/ose-rhel-coreos-9): ≥ 4.19.9.6.202608182320-0; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cert Manager support for Red Hat OpenShift release 1.17 (cert-manager/jetstack-cert-manager-acmesolver-rhel9): ≥ 1791371080; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cert Manager support for Red Hat OpenShift release 1.17 (cert-manager/jetstack-cert-manager-rhel9): ≥ 1791371069; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cert Manager support for Red Hat OpenShift release 1.17 (cert-manager/cert-manager-operator-rhel9): ≥ 1791788287; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cert Manager support for Red Hat OpenShift release 1.17 (cert-manager/cert-manager-operator-bundle): ≥ 1791970484; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cert Manager support for Red Hat OpenShift release 1.18 (cert-manager/jetstack-cert-manager-acmesolver-rhel9): ≥ 1791459707; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cert Manager support for Red Hat OpenShift release 1.18 (cert-manager/jetstack-cert-manager-rhel9): ≥ 1791459711; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cert Manager support for Red Hat OpenShift release 1.18 (cert-manager/cert-manager-istio-csr-rhel9): ≥ 1791459759; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cert Manager support for Red Hat OpenShift release 1.18 (cert-manager/cert-manager-operator-rhel9): ≥ 1789029076; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cert Manager support for Red Hat OpenShift release 1.18 (cert-manager/cert-manager-operator-bundle): ≥ 1791966259; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cert Manager support for Red Hat OpenShift release 1.20 (cert-manager/cert-manager-trust-manager-rhel9): ≥ 1790598593; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server 3.2 (rhaiis/model-opt-cuda-rhel9): ≥ 1782951051; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server 3.2 (rhaiis/vllm-cuda-rhel9): ≥ 1782951012; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AI Inference Server 3.2 (rhaiis/vllm-rocm-rhel9): ≥ 1782951244; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Discovery 2 (discovery/discovery-server-rhel9): ≥ 1782159791; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Discovery 2 (discovery/discovery-ui-rhel9): ≥ 1782166952; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Hardened Images (gnutls-main): ≥ 3.8.13-1.hum1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift AI 3.4 (rhai/base-image-neuron-rhel9): ≥ 1790703542; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/cds-rhel9): ≥ 1781525684; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/haproxy-rhel9): ≥ 1781525671; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/installer-rhel9): ≥ 1781525693; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/rhua-rhel9): ≥ 1781525739; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/cds-kubernetes-tp-rhel9): ≥ 1787241211; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/installer-tp-rhel9): ≥ 1787135742; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/rhua-tp-rhel9): ≥ 1787241260; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 6 (gnutls): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4 (openshift4/ose-hypershift-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (gnutls): ≥ 0:3.8.10-4.el10_2; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Support (gnutls): ≥ 0:3.8.9-9.el10_0.19; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support (gnutls): ≥ 0:3.3.29-9.el7_9.1; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8 (gnutls): ≥ 0:3.6.16-8.el8_10.6; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support (gnutls): ≥ 0:3.6.14-10.el8_4.1; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support (libtasn1): ≥ 0:4.13-3.el8_4.1; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On (gnutls): ≥ 0:3.6.14-10.el8_4.1; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On (libtasn1): ≥ 0:4.13-3.el8_4.1; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support (gnutls): ≥ 0:3.6.16-5.el8_6.5; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support (libtasn1): ≥ 0:4.13-3.el8_6.2; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On (gnutls): ≥ 0:3.6.16-5.el8_6.5; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On (libtasn1): ≥ 0:4.13-3.el8_6.2; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service (gnutls): ≥ 0:3.6.16-7.el8_8.4; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service (libtasn1): ≥ 0:4.13-4.el8_8.1; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions (gnutls): ≥ 0:3.6.16-7.el8_8.4; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions (libtasn1): ≥ 0:4.13-4.el8_8.1; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 9 (gnutls): ≥ 0:3.8.10-4.el9_8; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions (gnutls): ≥ 0:3.7.6-21.el9_2.7; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions (gnutls): ≥ 0:3.8.3-4.el9_4.6; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Support (gnutls): ≥ 0:3.8.3-6.el9_6.4; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift Container Platform 4.12 (rhcos): ≥ 412.86.202608241157-0; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift Container Platform 4.13 (rhcos): ≥ 413.92.202609080414-0; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift Container Platform 4.14 (rhcos): ≥ 414.92.202608172040-0; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift Container Platform 4.15 (rhcos): ≥ 415.92.202608180329-0; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift Container Platform 4.16 (rhcos): ≥ 416.94.202608150307-0; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift Container Platform 4.17 (rhcos): ≥ 417.94.202608250221-0; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift Container Platform 4.18 (rhcos): ≥ 418.94.202608142238-0; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift Container Platform 4.19 (rhcos): ≥ 4.19.9.6.202608182320-0; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server 3.2 (rhaiis/model-opt-cuda-rhel9): ≥ 1782951051; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server 3.2 (rhaiis/vllm-cuda-rhel9): ≥ 1782951012; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat AI Inference Server 3.2 (rhaiis/vllm-rocm-rhel9): ≥ 1782951244; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Discovery 2 (discovery/discovery-server-rhel9): ≥ 1782159791; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Discovery 2 (discovery/discovery-ui-rhel9): ≥ 1782166952; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Hardened Images (gnutls-main): ≥ 3.8.13-1.hum1; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/cds-rhel9): ≥ 1781525684; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/haproxy-rhel9): ≥ 1781525671; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/installer-rhel9): ≥ 1781525693; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/rhua-rhel9): ≥ 1781525739; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/cds-kubernetes-tp-rhel9): ≥ 1787241211; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/installer-tp-rhel9): ≥ 1787135742; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Update Infrastructure 5 (rhui5/rhua-tp-rhel9): ≥ 1787241260; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 6 (gnutls): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift Container Platform 4 (openshift4/ose-hypershift-rhel9): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift Container Platform 4 (openshift/ose-rhel-coreos-8): Version range not reported. Source: ADP: redhat-SADP

## Severity and prioritization

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H; source: CNA: redhat

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H; source: ADP: redhat-SADP

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H; source: NVD: secalert@redhat.com

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H; source: NVD: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

- CISA KEV: No listing in collected sources

- EPSS: 1.26% as of 2026-11-04; percentile 69.77%

- SSVC: exploitation none; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-130

## Exploit evidence

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

## References

- https://access.redhat.com/errata/RHSA-2026:13274 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:20611 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:20612 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:20613 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:26319 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:26409 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:29197 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:30004 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:30849 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:30850 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:32962 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:33125 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:34372 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:36004 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:36005 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:36006 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:41921 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:56786 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:56853 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:56911 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:57402 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:57483 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:58981 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:59831 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:60019 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:65839 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:72502 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:74674 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:82304 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:82322 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:82347 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:82354 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:82372 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:82857 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:82888 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-33846 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2450625 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-33846 (ADP: redhat-SADP; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2450625 (ADP: redhat-SADP; issue-tracking, x_refsource_REDHAT)

- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33846.json (ADP: redhat-SADP; x_sadp-csaf-vex)

- https://access.redhat.com/errata/RHSA-2026:34372 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:59831 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:65839 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:56786 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:56911 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:56853 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:60019 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:57483 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:57402 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:26409 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:20613 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:20611 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:33125 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:30849 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:30850 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:41921 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:32962 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:30004 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:20612 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:36004 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:36005 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:36006 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:29197 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:13274 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:58981 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:26319 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:13274 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:20611 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:20612 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:20613 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:26319 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:26409 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:29197 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:30004 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:30849 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:30850 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:32962 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:33125 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:34372 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:36004 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:36005 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:36006 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:41921 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:56786 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:56853 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:56911 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:57402 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:57483 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:58981 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:59831 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:60019 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:65839 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:72502 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:74674 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:82304 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:82322 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:82347 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:82354 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:82372 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:82857 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:82888 (secalert@redhat.com)

- https://access.redhat.com/security/cve/CVE-2026-33846 (secalert@redhat.com)

- https://bugzilla.redhat.com/show_bug.cgi?id=2450625 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:13274 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:20611 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:20612 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:20613 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:26319 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:26409 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:29197 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:30004 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:30849 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:30850 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:32962 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:33125 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:34372 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:36004 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:36005 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:36006 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:41921 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:56786 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:56853 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:56911 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:57402 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:57483 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:58981 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:59831 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:60019 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/errata/RHSA-2026:65839 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://access.redhat.com/security/cve/CVE-2026-33846 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://bugzilla.redhat.com/show_bug.cgi?id=2450625 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33846.json (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-33846; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-33846; retrieved 2026-11-05; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-33846; retrieved 2026-11-04; source updated Not reported

Revision: 8b5c31ba4697c8210df768ea2c3fb9d3f6f4add61f2ec290d91f3fe5f4219a54

Canonical: https://y2.dev/cve/CVE-2026-33846

## 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.