{"id":"CVE-2026-121611","aliases":["DEBIAN-CVE-2026-121611","EUVD-2026-120052","GHSA-m394-f7p9-g5gg"],"status":"published","title":"Gstreamer1-plugins-bad-free: gst-plugins-bad: use of uninitialized gsth265hrdparams in gst_h265_parse_vps() multi-hrd workaround loop","description":"A flaw was found in GStreamer's gst-plugins-bad package. A use of uninitialized memory vulnerability exists in the H.265 (HEVC) bitstream parser when processing Video Parameter Sets that declare more than one HRD (Hypothetical Reference Decoder) parameter set. A remote attacker could exploit this by providing a crafted H.265 media file or stream that, when processed by an application using GStreamer, causes unpredictable parser behavior and may crash the application. This can lead to a denial of service for any application using GStreamer to play back H.265 content.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00563,"percentile":0.47311,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-457"],"published":"2026-11-09T13:01:00Z","modified":"2026-11-12T05:00:08Z","fixes":[{"ecosystem":"Debian:14","package":"gst-plugins-bad1.0","fixed_in":["1.28.9-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"gst-plugins-bad1.0","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22.0-4","1.22.0-4+deb12u1","1.22.0-4+deb12u2","1.22.0-4+deb12u3","1.22.0-4+deb12u4","1.22.0-4+deb12u5","1.22.0-4+deb12u6","1.22.0-4+deb12u7","1.22.0-4+deb12u8","1.22.1-1","1.22.10-1","1.22.3-1","1.22.3-2","1.22.4-1","1.22.7-1","1.22.8-1","1.22.9-1","1.22.9-2","1.23.1-1","1.23.2-1","1.23.90-1","1.24.0-1","1.24.1-1","1.24.1-2","1.24.1-3","1.24.1-4","1.24.10-1","1.24.10-2","1.24.10-2+hurd.1","1.24.10-3","1.24.11-1","1.24.11-2","1.24.11-3","1.24.12-1","1.24.12-2","1.24.12-3","1.24.2-1","1.24.2-2","1.24.2-3","1.24.2-4","1.24.3-1","1.24.4-1","1.24.4-2","1.24.5-1","1.24.6-1","1.24.7-1","1.24.8-1","1.24.8-2","1.24.9-1","1.25.1-1","1.25.1-2","1.25.1-3","1.25.50-1","1.25.90-1","1.25.90-2","1.25.90-3","1.26.0-1","1.26.1-1","1.26.10-1","1.26.10-2","1.26.2-1","1.26.2-2","1.26.2-3","1.26.3-1","1.26.4-1","1.26.5-1","1.26.5-2","1.26.6-1","1.26.6-2","1.26.6-3","1.26.6-4","1.26.6-5","1.26.7-1","1.26.7-2","1.26.8-1","1.26.9-1","1.27.1-1","1.27.2-1","1.27.50-1","1.27.90-1","1.27.90-2","1.27.90-3","1.28.0-1","1.28.1-1","1.28.1-2","1.28.1-3","1.28.2-1","1.28.2-2","1.28.3-1","1.28.4-1","1.28.5-1","1.28.5-2","1.28.6-1","1.28.7-1","1.28.7-2","1.28.8-1","1.28.9-1","1.29.1-1","1.29.2-1","1.29.2-2"]},{"source":"osv","ecosystem":"Debian:13","package":"gst-plugins-bad1.0","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.26.10-1","1.26.10-2","1.26.2-3","1.26.2-3+deb13u1","1.26.2-3+deb13u2","1.26.2-3+deb13u3","1.26.3-1","1.26.4-1","1.26.5-1","1.26.5-2","1.26.6-1","1.26.6-2","1.26.6-3","1.26.6-4","1.26.6-5","1.26.7-1","1.26.7-2","1.26.8-1","1.26.9-1","1.27.1-1","1.27.2-1","1.27.50-1","1.27.90-1","1.27.90-2","1.27.90-3","1.28.0-1","1.28.1-1","1.28.1-2","1.28.1-3","1.28.2-1","1.28.2-2","1.28.3-1","1.28.4-1","1.28.5-1","1.28.5-2","1.28.6-1","1.28.7-1","1.28.7-2","1.28.8-1","1.28.9-1","1.29.1-1","1.29.2-1","1.29.2-2"]},{"source":"osv","ecosystem":"Debian:14","package":"gst-plugins-bad1.0","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.28.9-1"}]}],"versions":["1.26.10-1","1.26.10-2","1.26.2-3","1.26.3-1","1.26.4-1","1.26.5-1","1.26.5-2","1.26.6-1","1.26.6-2","1.26.6-3","1.26.6-4","1.26.6-5","1.26.7-1","1.26.7-2","1.26.8-1","1.26.9-1","1.27.1-1","1.27.2-1","1.27.50-1","1.27.90-1","1.27.90-2","1.27.90-3","1.28.0-1","1.28.1-1","1.28.1-2","1.28.1-3","1.28.2-1","1.28.2-2","1.28.3-1","1.28.4-1","1.28.5-1","1.28.5-2","1.28.6-1","1.28.7-1","1.28.7-2","1.28.8-1"]}],"products":[{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-121611","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2565937","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5332"},{"url":"https://gstreamer.freedesktop.org/security/sa-2026-0094.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121611"},{"url":"https://github.com/advisories/GHSA-m394-f7p9-g5gg"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-121611","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-121611","title":"Gstreamer1-plugins-bad-free: gst-plugins-bad: use of uninitialized gsth265hrdparams in gst_h265_parse_vps() multi-hrd workaround loop","description":"A flaw was found in GStreamer's gst-plugins-bad package. A use of uninitialized memory vulnerability exists in the H.265 (HEVC) bitstream parser when processing Video Parameter Sets that declare more than one HRD (Hypothetical Reference Decoder) parameter set. A remote attacker could exploit this by providing a crafted H.265 media file or stream that, when processed by an application using GStreamer, causes unpredictable parser behavior and may crash the application. This can lead to a denial of service for any application using GStreamer to play back H.265 content.","status":"published","published":"2026-11-09T13:01:00.326Z","modified":"2026-11-10T17:51:12.207Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-457"],"updated_at":"2026-11-09T14:33:34.013968Z"}],"euvd":[{"id":"EUVD-2026-120052","description":"A flaw was found in GStreamer's gst-plugins-bad package. A use of uninitialized memory vulnerability exists in the H.265 (HEVC) bitstream parser when processing Video Parameter Sets that declare more than one HRD (Hypothetical Reference Decoder) parameter set. A remote attacker could exploit this by providing a crafted H.265 media file or stream that, when processed by an application using GStreamer, causes unpredictable parser behavior and may crash the application. This can lead to a denial of service for any application using GStreamer to play back H.265 content.","status":"published","published":"2026-11-09T13:01:00Z","modified":"2026-11-10T17:51:12Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-09T18:17:42.225569Z"}],"ghsa":[{"id":"GHSA-m394-f7p9-g5gg","title":"A flaw was found in GStreamer's gst-plugins-bad package. A use of uninitialized memory...","description":"A flaw was found in GStreamer's gst-plugins-bad package. A use of uninitialized memory vulnerability exists in the H.265 (HEVC) bitstream parser when processing Video Parameter Sets that declare more than one HRD (Hypothetical Reference Decoder) parameter set. A remote attacker could exploit this by providing a crafted H.265 media file or stream that, when processed by an application using GStreamer, causes unpredictable parser behavior and may crash the application. This can lead to a denial of service for any application using GStreamer to play back H.265 content.","status":"published","published":"2026-11-09T15:32:09Z","modified":"2026-11-09T15:32:17Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-457"],"updated_at":"2026-11-09T15:48:42.843855Z"}],"nvd":[{"id":"CVE-2026-121611","description":"A flaw was found in GStreamer's gst-plugins-bad package. A use of uninitialized memory vulnerability exists in the H.265 (HEVC) bitstream parser when processing Video Parameter Sets that declare more than one HRD (Hypothetical Reference Decoder) parameter set. A remote attacker could exploit this by providing a crafted H.265 media file or stream that, when processed by an application using GStreamer, causes unpredictable parser behavior and may crash the application. This can lead to a denial of service for any application using GStreamer to play back H.265 content.","status":"published","published":"2026-11-09T13:17:07.06Z","modified":"2026-11-10T18:17:20.5Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-457"],"updated_at":"2026-11-10T20:21:09.207118Z"}],"osv":[{"id":"DEBIAN-CVE-2026-121611","description":"A flaw was found in GStreamer's gst-plugins-bad package. A use of uninitialized memory vulnerability exists in the H.265 (HEVC) bitstream parser when processing Video Parameter Sets that declare more than one HRD (Hypothetical Reference Decoder) parameter set. A remote attacker could exploit this by providing a crafted H.265 media file or stream that, when processed by an application using GStreamer, causes unpredictable parser behavior and may crash the application. This can lead to a denial of service for any application using GStreamer to play back H.265 content.","status":"published","published":"2026-11-09T13:17:07.06Z","modified":"2026-11-12T05:00:08.657115197Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-12T05:32:35.067145Z"}]}}