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.
References
Configurations
No configuration.
History
No history.
Information
Published : 2026-06-19 17:16
Updated : 2026-09-01 13:19
NVD link : CVE-2026-56208
Mitre link : CVE-2026-56208
CVE.ORG link : CVE-2026-56208
JSON object : View
Products Affected
No product.
CWE
CWE-122
Heap-based Buffer Overflow
