CVE-2026-1940: An incomplete fix for allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The patch added a size validation c

CVE-2026-1940 · Severity: medium · CVSS 5.1 · Published 2026-03-23

An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The patch added a size validation check lsize + 8 > size, but it does not account for the GST_ROUND_UP_2(lsize) used in the actual offset calculation. When lsize is an odd number, the parser advances more bytes than validated, causing OOB read.

Technologies: Debian Linux, Gstreamer, Redhat Enterprise Linux. Vendors: Debian, Freedesktop, Gstreamer, Redhat.

Quick answers

Is CVE-2026-1940 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-1940 being exploited in the wild.
How severe is CVE-2026-1940?
Medium severity, with a CVSS score of 5.1, published 23 March 2026.
Which products and versions are affected?
Debian Linux, Freedesktop Gst-Plugins-Good, Gstreamer, Redhat Enterprise Linux. The advisory does not name versions.
Is there a fix for CVE-2026-1940?
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.
Am I affected by CVE-2026-1940?
Check whether you run Debian Linux, Freedesktop Gst-Plugins-Good, Gstreamer or one of the others listed. 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.

Affected products

  • Debian Linux
  • Freedesktop Gst-Plugins-Good
  • Gstreamer
  • Redhat Enterprise Linux

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