Release of invalid pointer or reference in gst-libav and gstreamer - CVE-2026-52717

Vulnerability identifier: #VU141102

CSH Severity: Medium

CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-52717

CWE-ID: CWE-763

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to invalid free in the AV protocol pipe close handler in gst-libav when using the gst-libav demuxer in push mode. A remote attacker can supply crafted media that is processed with the gst-libav demuxer to cause a denial of service.

The issue is triggered when the pipe used for AV I/O operations is closed.

gst-libav
gstreamer
Debian Linux
openEuler
gstreamer1-libav
gstreamer1-libav-debuginfo
gstreamer1-libav-debugsource
gst-libav1.0 (Debian package)

Install security update from vendor's website.

gst-libav - update to 1.28.4
gstreamer - update to 1.28.4
gstreamer1-libav - addressed in versions 1.18.4-2, 1.22.5-2
gstreamer1-libav-debuginfo - addressed in versions 1.18.4-2, 1.22.5-2
gstreamer1-libav-debugsource - addressed in versions 1.18.4-2, 1.22.5-2
gst-libav1.0 (Debian package) - update to 1.26.2-1+deb13u1

• https://gstreamer.freedesktop.org/security/sa-2026-0037.html

• Multiple vulnerabilities in gst-plugins-bad
• Debian update for gst-libav1.0
• openEuler 24.03 LTS SP3 update for gstreamer1-libav
• openEuler 24.03 LTS SP1 update for gstreamer1-libav
• openEuler 22.03 LTS SP4 update for gstreamer1-libav