# CVE-2026-73472: GStreamer gst-plugins-good integer overflow in AVI parser

Source: https://junglewise.ai/threats/cve-2026-73472-a-flaw-was-found-in-gstreamer-gst-plugins-good-avidemux-in-the  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-06. Updated: 2026-11-06  
License: CC BY 4.0 with a link back

CVE-2026-73472 · Severity: medium · CVSS 6.1 · Published 2026-11-06

GStreamer's AVI media parser (avidemux) contains an integer overflow vulnerability in its file handling code. When a user opens or previews a maliciously crafted AVI video file, the vulnerability can cause the media player or preview service to crash, resulting in a denial of service or potentially disclosing small amounts of memory. The flaw is automatically triggered when opening or generating previews for AVI files due to how GStreamer integrates the parser into its playback pipeline.

Technologies: [Gstreamer Gst-Plugins-Good](https://junglewise.ai/threats/technologies/gstreamer-gst-plugins-good). Vendors: [Gstreamer](https://junglewise.ai/threats/vendors/gstreamer).

## Quick answers

**Is CVE-2026-73472 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-73472 being exploited in the wild.

**How severe is CVE-2026-73472?** Medium severity, with a CVSS score of 6.1, published 6 November 2026.

**Which products and versions are affected?** Gstreamer Gst-Plugins-Good before 1.28.6.

**Is there a fix for CVE-2026-73472?** Yes: fixed in gst-plugins-good 1.28.6. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-73472 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-73472?** Check whether you run Gstreamer Gst-Plugins-Good at an affected version. 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.

## How to fix

- Fixed in gst-plugins-good 1.28.6

## Technical details

An integer overflow in the superindex and subindex parsers of GStreamer's avidemux element allows bounds checks to be bypassed, resulting in out-of-bounds memory reads. The vulnerability is triggered when a user opens or previews a crafted AVI file, as avidemux is auto-plugged by playbin, decodebin, and gst-discoverer. Exploitation results in application crashes (denial of service) or limited memory disclosure, but does not enable arbitrary code execution under default security configurations.

## Affected products

- GStreamer gst-plugins-good before 1.28.6

## Timeline

- 2026-11-06: disclosed

## References

- [https://gitlab.freedesktop.org/gstreamer/gst-plugins-good](https://gitlab.freedesktop.org/gstreamer/gst-plugins-good)
- [https://access.redhat.com/security/cve/CVE-2026-73472](https://access.redhat.com/security/cve/CVE-2026-73472)

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