Quick answers
- Is CVE-2026-119843 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-119843 being exploited in the wild.
- How severe is CVE-2026-119843?
- Medium severity, with a CVSS score of 6.5, published 3 November 2026.
- Which products and versions are affected?
- GStreamer gst-plugins-good.
- Is there a fix for CVE-2026-119843?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-119843 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-119843?
- Check whether you run Gstreamer Gst-Plugins-Good. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The FLV media demuxer in gst-plugins-good fails to properly validate buffer sizes and data availability when processing enhanced audio and video tags in malformed or truncated FLV streams. An unauthenticated remote attacker can trigger assertion failures or process crashes by supplying a specially crafted FLV file, resulting in denial of service against any GStreamer-based application that attempts to process the malicious media.
Affected products
- GStreamer gst-plugins-good
Timeline
- 2026-11-03: disclosed