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CVE-2026-1940

MEDIUM

5.1

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.

CVE Details

CVSS v3.1 Score5.1

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/23/2026

Last Modified3/24/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-125

References

https://access.redhat.com/security/cve/CVE-2026-1940(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2436932(secalert@redhat.com)

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/4854(secalert@redhat.com)

https://gstreamer.freedesktop.org/security/sa-2026-0001.html(secalert@redhat.com)

https://security-tracker.debian.org/tracker/CVE-2026-1940(secalert@redhat.com)

IOC Correlations

No correlations recorded

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