{"id":"CVE-2026-52718","title":"A denial of service vulnerability was found in GStreamer's AV1 codec parser in gst-plugins-bad","summary":"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 desynchron…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-617"],"published":"2026-06-15","updated":"2026-07-14","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-52718","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:36749","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:36834","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-52718","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2486328","label":"secalert@redhat.com"},{"url":"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5103","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00386,"epssPercentile":0.32567,"ingestedAt":"2026-07-14T09:36:17.959Z","slug":"CVE-2026-52718","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}