CVE search · CVE-2026-12891
CVE-2026-12891
medium 4.3
A flaw was found in the GStreamer gst-plugins-bad package. When processing a malformed H.266/VVC video stream with a crafted aspect ratio indicator value, the H.266 parser performs an out-of-bounds read of up to 8 bytes from adjacent memory. This flaw allows an attacker to craft a malicious H.266 video file or stream that, when processed by a GStreamer-based application, could leak limited memory contents through video metadata, potentially exposing sensitive information from the application's address space.
Details
- Status
- Analyzed
- Published
- Last changed
- Source
- secalert@redhat.com
- Weakness
- CWE-125
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | medium 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
secalert@redhat.comSecondary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
References
- https://access.redhat.com/security/cve/CVE-2026-12891Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2491318Third Party Advisory
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5109Not Applicable