DoS: GStreamer AV1 Parser Desync via gst_plugins_bad
CVE-2026-52718 Published on June 15, 2026
Gstreamer1-plugins-bad-free: gstreamer: denial of service via av1 tile_list_obu parser byte/bit confusion
A denial of service vulnerability was found in GStreamer's AV1 codec parser in gst-plugins-bad. The gst_av1_parser_parse_tile_list_obu() function passes a byte count to a bit-reader API that expects a bit count, causing parser desynchronization. A remote attacker could trick a user into opening a specially crafted AV1 media file, triggering an assertion abort and causing the application to crash.
Vulnerability Analysis
CVE-2026-52718 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Timeline
Reported to Red Hat.
Made public. 27 days later.
Weakness Type
What is an assertion failure Vulnerability?
The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
CVE-2026-52718 has been classified to as an assertion failure vulnerability or weakness.
Products Associated with CVE-2026-52718
Want to know whenever a new CVE is published for Red Hat Enterprise Linux (RHEL)? stack.watch will email you.
