CVE-2026-119777
Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: stack buffer overflow in h.266/vvc parser
A flaw was found in GStreamer's gst-plugins-bad H.266/VVC parser. When processing a malformed H.266 media file or stream, an integer overflow while parsing profile, tier, and level fields can lead to a stack-based buffer overflow. An attacker could cause an application to crash and may be able to execute code in the context of the affected application.
Fixes and workarounds
Workaround
There is no complete mitigation for this vulnerability. As a risk-reduction measure, disable H.266/VVC media ingestion in GStreamer-based applications and media pipelines where that feature is not required. Until a fixed package is available, do not open or transcode H.266/VVC files or streams from untrusted sources.
Source: CNA: redhatAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Red Hat Enterprise Linux 10 Red Hat gstreamer1-plugins-bad-free
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 7 Red Hat gstreamer1-plugins-bad-free
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unaffected |
CNA: redhat |
| Red Hat Enterprise Linux 8 Red Hat gstreamer1-plugins-bad-free
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unaffected |
CNA: redhat |
| Red Hat Enterprise Linux 9 Red Hat gstreamer1-plugins-bad-free
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unaffected |
CNA: redhat |
| gst-plugins-bad GStreamer project https://gstreamer.freedesktop.org/ |
≥ 1.25.1; < 1.28.2 (affected, semver) 1.28.2 (unaffected) |
CNA: redhat |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.8 high |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | CNA: redhat |
| 3.1 / 7.8 high |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://access.redhat.com/security/cve/CVE-2026-119777CNA: redhat · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2564164CNA: redhat · issue-tracking, x_refsource_REDHAT
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11241CNA: redhat
- https://access.redhat.com/security/cve/CVE-2026-119777[email protected]
- https://bugzilla.redhat.com/show_bug.cgi?id=2564164[email protected]
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11241[email protected]
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