{"id":"CVE-2026-100229","title":"A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers)","summary":"A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write b…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","cwe":["CWE-787"],"published":"2026-10-14","updated":"2026-10-14","sourceUpdated":"2026-10-14T11:16:56.620","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100229","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-100229","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541471","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-100229.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-100229"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100229"}],"tags":["nvd","csaf","vex","red-hat"],"ingestedAt":"2026-10-14T11:27:22.139Z","vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","affected":["enterprise_linux 10","enterprise_linux 7","enterprise_linux 8","enterprise_linux 9"],"slug":"CVE-2026-100229","body":"## Overview\n\nA flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write beyond the bounds of an internal structure. An attacker could exploit this by providing a specially crafted H.266 bitstream to a third-party application that uses this library API, potentially causing a crash or memory corruption. No standard GStreamer pipeline element currently invokes the affected code path.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · updated 2026-10-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-100229.json)","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}