CVE-2026-125041 Gst-plugins-good: gst-plugins-good: qtdemux out-of-bounds heap read from invalid uncompressed video layout
Medium 5.5
Published
Updated
Check this codebase for CVE-2026-125041 and fix it if it is affected.
What it is: CVE-2026-125041 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 9 Nov 2026.
Exploitation: There is no known exploitation of CVE-2026-125041 in the wild and no public exploit code.
Affected product: Red Hat Enterprise Linux 10. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-125041/ (Markdown: https://insights.sbomify.com/CVE-2026-125041/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-125041?
CVE-2026-125041 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 9 Nov 2026.
Official description
A flaw was found in GStreamer's gst-plugins-good MOV/MP4 demuxer. When processing an uncompressed video track, qtdemux fails to validate the declared row alignment and chroma geometry before using them to build a video buffer layout. A crafted file can cause an out-of-bounds heap read while the sample is copied, potentially crashing the application and causing denial of service.
Weakness: CWE-1284
Which versions are affected by CVE-2026-125041?
How do I fix CVE-2026-125041?
Upgrade to a fixed version.
Is CVE-2026-125041 being exploited?
There is no known exploitation of CVE-2026-125041 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-125041, ECHO-f5fe-f27b-1b5b, GHSA-9j76-73gx-v648, UBUNTU-CVE-2026-125041.