CVE-2026-1940: Debian Linux

High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Debian Debian Linux: version 11.0 only; version 12.0 only
• Freedesktop Gst-Plugins-Good: version 1.0.0 only
• Gstreamer Gstreamer: before 1.28.1 (fixed in 1.28.1)
• Red Hat Enterprise Linux: version 7.0 only; version 8.0 only; version 9.0 only; version 10.0 only

Published 2026-03-23. Last modified 2026-06-17.