CVE-2026-1940

Gstreamer: incomplete fix of cve-2026-1940

Published: Mar 23, 2026Updated: May 4, 2026 Sources: CVE List NVDCWE-125

5.1MEDIUM

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:LAttack Vector

Local

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:LIntegrity

Low

A:LAvailability

Low

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Weaknesses

CWE-125

Affected Products

freedesktop

oss-projectaka freedesktop.org

gst-plugins-good

OSS Libraries

gstreamer

oss-projectaka plug-ins, good plug-ins

gstreamerLibraryLibrary

OSS Libraries / generic-library

debian

oss-project·GBaka debian gnu/linux

debian linuxOn-premOS

Operating Systems / linux-distro

Red Hat

commercial·USaka redhat

Red Hat Enterprise Linux 10On-premOS

Operating Systems / linux-distro

and 5 more affected products View all →

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Collection

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References

https://access.redhat.com/security/cve/CVE-2026-1940

access.redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2436932

bugzilla.redhat.com

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/4854

gitlab.freedesktop.org

and 2 more references View all →

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