Bug 2436932 (CVE-2026-1940) - CVE-2026-1940 gstreamer: incomplete fix of CVE-2026-1940
Summary: CVE-2026-1940 gstreamer: incomplete fix of CVE-2026-1940
Keywords:
Status: NEW
Alias: CVE-2026-1940
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2450495 2450496
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-04 21:35 UTC by OSIDB Bzimport
Modified: 2026-03-23 21:22 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-02-04 21:35:47 UTC 
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.
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