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 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.
Metrics
Affected Vendors & Products
References
History
Fri, 06 Nov 2026 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat rhel Els
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| CPEs | cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
cpe:/a:redhat:enterprise_linux:10 cpe:/a:redhat:enterprise_linux:8 cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:rhel_els:7 |
| Vendors & Products |
Redhat rhel Els
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Wed, 14 Oct 2026 15:30:00 +0000
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| Metrics |
ssvc
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Wed, 14 Oct 2026 12:15:00 +0000
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| References |
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| Metrics |
threat_severity
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threat_severity
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Wed, 14 Oct 2026 10:30:00 +0000
| Type | Values Removed | Values Added |
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| Description | 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 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. | |
| Title | Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: out-of-bounds write in gst_h266_parser_parse_dci() due to off-by-one array bound check | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-787 | |
| CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux |
|
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-10-14T10:02:12.688Z
Updated: 2026-11-06T17:49:26.481Z
Reserved: 2026-09-25T15:24:07.433Z
Link: CVE-2026-100229
Updated: 2026-10-14T14:11:48.731Z
Status : Awaiting Analysis
Published: 2026-10-14T11:16:56.620
Modified: 2026-11-06T18:17:32.057
Link: CVE-2026-100229