# CVE-2026-112214: GStreamer gst-plugins-ugly ASF demuxer unbounded memory allocation

Source: https://junglewise.ai/threats/cve-2026-112214-a-flaw-was-found-in-the-gstreamer-asf-demuxer-in-gst-plugins  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-19. Updated: 2026-10-19  
License: CC BY 4.0 with a link back

CVE-2026-112214 · Severity: medium · CVSS 6.5 · Published 2026-10-19

GStreamer is a multimedia framework used by media players and indexing applications to process audio and video files. A flaw in the ASF/WMV/WMA file parser allows an attacker to craft a malicious media file that triggers an excessively large memory allocation request, causing the application to crash or consume excessive memory. An attacker can exploit this by distributing a crafted media file that victims process through GStreamer-based applications.

Technologies: [Gstreamer Gst-Plugins-Ugly](https://junglewise.ai/threats/technologies/gst-plugins-ugly). Vendors: [Gstreamer](https://junglewise.ai/threats/vendors/gstreamer), [Red Hat](https://junglewise.ai/threats/vendors/red-hat).

## Quick answers

**Is CVE-2026-112214 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-112214 being exploited in the wild.

**How severe is CVE-2026-112214?** Medium severity, with a CVSS score of 6.5, published 19 October 2026.

**Which products and versions are affected?** Gstreamer Gst-Plugins-Ugly <UNKNOWN>; Red Hat Gstreamer1-Plugins-Ugly-Free <UNKNOWN>.

**Is there a fix for CVE-2026-112214?** No fixed version is recorded yet. Avoid opening untrusted ASF, WMV, or WMA files in GStreamer-based applications, including local media players and media indexers or thumbnail generators. 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-2026-112214 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-112214?** Check whether you run Gstreamer Gst-Plugins-Ugly or Red Hat Gstreamer1-Plugins-Ugly-Free 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


Avoid opening untrusted ASF, WMV, or WMA files in GStreamer-based applications, including local media players and media indexers or thumbnail generators.

## Technical details

The vulnerability is an unbounded memory allocation (CWE-789) in the Simple Index parser of the ASF demuxer within gst-plugins-ugly. When parsing a crafted ASF, WMV, or WMA file, an attacker-controlled entry count is used directly to size a heap allocation via g_new0 without validation against the remaining object payload size. An unauthenticated remote attacker can trigger this by providing a malicious media file that requires processing, resulting in denial of service through memory exhaustion or allocation failure.

## Affected products

- GStreamer gst-plugins-ugly <UNKNOWN>
- Red Hat gstreamer1-plugins-ugly-free <UNKNOWN>

## Timeline

- 2026-10-19: disclosed

## References

- [https://access.redhat.com/downloads/content/package-browser/](https://access.redhat.com/downloads/content/package-browser/)
- [https://access.redhat.com/security/cve/CVE-2026-112214](https://access.redhat.com/security/cve/CVE-2026-112214)

## Related threats

- [GStreamer RealMedia demuxer out-of-bounds read in FILEINFO metadata](https://junglewise.ai/threats/cve-2026-53704-gstreamer-realmedia-demuxer-out-of-bounds-read-in-fileinfo)
- [GStreamer RealMedia demuxer out-of-bounds read in MDPR chunk parsing](https://junglewise.ai/threats/cve-2026-53703-gstreamer-realmedia-demuxer-out-of-bounds-read-in-mdpr-chunk)
- [GStreamer RealMedia Demuxer out-of-bounds write](https://junglewise.ai/threats/cve-2026-2922-gstreamer-realmedia-demuxer-out-of-bounds-write)