CVE-2026-52718CWE-617

Gstreamer1-plugins-bad-free: gstreamer: denial of service via av1 tile_list_obu parser byte/bit confusion

Medium · published June 15, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
53.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00709 · 53.0th percentile
Weakness
CWE-617 · Reachable Assertion
Published
2026-06-15T19:15Z
EPSS history
Timeline
  • 15 JUN 19:15Z
    Gstreamer1-plugins-bad-free: gstreamer: denial of service via av1 tile_list_obu parser byte/bit confusion
    cvelistv5