Status: UPDATED | Advisory ID: CVE-2026-56208
| CVE | CVE-2026-56208 |
| CVSS Score / Version | 7.6 (High) / CVSS v3.1 |
| Updated | 2026-10-02 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is required; scope is unchanged; confidentiality impact is low; integrity impact is low; availability impact is high. |
| Affected products | see table below |
| Classified as | CWE-122 (Heap-based Buffer Overflow) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Red Hat | Red Hat AI Inference Server 3.3 | ||
| Red Hat | Red Hat OpenShift AI 3.3 | ||
| Red Hat | Red Hat OpenShift AI 3.4 | ||
| Red Hat | Red Hat AI Inference Server | ||
| Red Hat | Red Hat OpenShift AI (RHOAI) | ||
| Red Hat | Red Hat Enterprise Linux 10 | ||
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | ||
| Red Hat | Red Hat Enterprise Linux 8 | ||
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | ||
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | ||
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | ||
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | ||
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | ||
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | ||
| Red Hat | Red Hat Enterprise Linux 9 | ||
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | ||
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | ||
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | ||
| Red Hat | Red Hat OpenShift AI 3.5 | ||
| Red Hat | Red Hat Hardened Images | ||
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | ||
| Red Hat | Red Hat AI Inference Server 3.2 | ||
| Red Hat | Red Hat Enterprise Linux AI 3.3 for RHEL 9 | ||
| Red Hat | Red Hat Enterprise Linux AI 3.4 for RHEL 9 | ||
| Red Hat | Red Hat Enterprise Linux AI 3.5 for RHEL 9 |
| Subsystems | General OT |
| Sectors | Multiple |
A heap buffer overflow vulnerability was found in libaom, the reference AV1 codec implementation. A flaw in the AV1 encoder's Look-Ahead Processing (LAP) mode causes the first-pass stats ring buffer wrap-around guard to be bypassed when g_lag_in_frames is set to 1 or higher. This results in a 232-byte out-of-bounds write on every encoded frame after the second, corrupting adjacent heap objects. An attacker who can influence encoder configuration in a transcoding service or WebRTC session could exploit this to cause a denial of service (process crash) or potentially achieve code execution. (NVD)
Monitor Red Hat's web page for any future patch releases.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-56208 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-56208 |