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CVE-2026-1940

Gstreamer: incomplete fix of cve-2026-1940

Published: 3/23/2026 Last updated: 3/24/2026 Reserved: 2/4/2026

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.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 5.1 Medium CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Opam packages affected (2)

conf-gstreamer gstreamer

Products affected (0)

No product listed.

References (10)

Credits (2)