CVE-2026-119843
Gst-plugins-good: assertion failures in FLV demuxer when parsing malformed enhanced audio/video tags
No exploitation reported by the sources we read.
- Published2026-11-03
- WeaknessCWE-617
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
A flaw was found in GStreamer's gst-plugins-good package. The FLV media demuxer does not properly validate buffer sizes and data availability when processing enhanced audio and video tags in malformed or truncated FLV streams. A remote attacker could exploit this vulnerability by providing a specially crafted FLV media file that, when opened or streamed by a GStreamer-based application, triggers an assertion failure or a process crash, leading to denial of service.
Timeline
dates in UTC- 2026-11-0309:45CVE publishedCNA
Observed activity
isMalicious corpus · updated 2026-11-03 09:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-119843?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-119843?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
Products declared by the CNA
As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.
- Red Hat Enterprise Linux 10other versions: not affected
package gstreamer1-plugins-goodhttps://access.redhat.com/downloads/content/package-browser/
- Red Hat Enterprise Linux 7other versions: not affected
package gstreamer1-plugins-goodhttps://access.redhat.com/downloads/content/package-browser/
- Red Hat Enterprise Linux 8other versions: not affected
package gstreamer1-plugins-goodhttps://access.redhat.com/downloads/content/package-browser/
- Red Hat Enterprise Linux 9other versions: not affected
package gstreamer1-plugins-goodhttps://access.redhat.com/downloads/content/package-browser/
- GStreamer project gst-plugins-good
https://gstreamer.freedesktop.org/
Affected- < 1.28.2fixed in 1.28.2semver
Not affected = 1.28.2
Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-03
Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-119843 yet.
Fix
No fix published by the sources we read yet. NVD record
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
- Metasploit modules
- none listed Metasploit Framework
Sources
Identifiers
- EUVD-2026-115733same flawENISA EUVD · LicenseRef-ENISA-legal-notice
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Published
- 2026-11-03
- Last Modified
- 2026-11-03
- NVD status
- Awaiting Analysis
Frequently asked questions
What is CVE-2026-119843?
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What is the CVSS score for CVE-2026-119843?
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