Integer overflow in gstreamer - CVE-2026-2921

Vulnerability identifier: #VU123648

CSH Severity: High

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-2921

CWE-ID: CWE-190

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow within the handling of palette data in AVI files. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

gstreamer
Debian Linux
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for ARM 64
Anolis OS
Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Ubuntu
openEuler
Fedora
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
gst-plugins-base1.0 (Ubuntu package)
gstreamer1-plugins-base (Red Hat package)
gstreamer1-plugins-good (Red Hat package)
gstreamer1-plugins-bad-free (Red Hat package)
gstreamer1-plugins-good-gtk
gstreamer1-plugins-good
gstreamer1-plugins-base-help
gstreamer1-plugins-base-devel
gstreamer1-plugins-base-debugsource
gstreamer1-plugins-base-debuginfo
gstreamer1-plugins-base
gst-plugins-base1.0 (Debian package)
gstreamer1-plugins-ugly-free (Red Hat package)
gstreamer1-plugins-bad-free-devel
gstreamer1-plugins-bad-free-libs
gstreamer1-plugins-bad-free
mingw-gstreamer1-plugins-good
mingw-gstreamer1-plugins-base
mingw-gstreamer1-plugins-bad-free
mingw-gstreamer1
gstreamer1-doc
gstreamer1-devel
gstreamer1

Install updates from vendor's website.

gstreamer - update to 1.28.1
gst-plugins-base1.0 (Ubuntu package) - addressed in versions 1.8.3-1ubuntu0.3+esm4, 1.20.1-1ubuntu0.6, 1.24.2-1ubuntu0.4, 1.26.6-1ubuntu0.1
gstreamer1-plugins-base (Red Hat package) - addressed in versions 1.16.1-3.el8_2, 1.16.1-4.el8_4, 1.16.1-4.el8_6, 1.16.1-4.el8_8, 1.16.1-6.el8_10, 1.22.12-5.el9_7, 1.24.11-2.el10_1
gstreamer1-plugins-good (Red Hat package) - addressed in versions 1.16.1-3.el8_2, 1.16.1-4.el8_4, 1.16.1-4.el8_6, 1.16.1-5.el8_8, 1.16.1-6.el8_10, 1.22.12-5.el9_7, 1.24.11-2.el10_1
gstreamer1-plugins-bad-free (Red Hat package) - addressed in versions 1.16.1-4.el8_2, 1.16.1-4.el8_4, 1.16.1-4.el8_6, 1.16.1-4.el8_8, 1.16.1-6.el8_10, 1.22.12-5.el9_7, 1.24.11-3.el10_1
gstreamer1-plugins-good-gtk - update to 1.16.1-6
gstreamer1-plugins-good - update to 1.16.1-6
gstreamer1-plugins-base-help - addressed in versions 1.16.2-9, 1.18.4-10, 1.22.5-4
gstreamer1-plugins-base-devel - addressed in versions 1.16.2-9, 1.18.4-10, 1.22.5-4
gstreamer1-plugins-base-debugsource - addressed in versions 1.16.2-9, 1.18.4-10, 1.22.5-4
gstreamer1-plugins-base-debuginfo - addressed in versions 1.16.2-9, 1.18.4-10, 1.22.5-4
gstreamer1-plugins-base - addressed in versions 1.16.2-9, 1.18.4-10, 1.22.5-4
gst-plugins-base1.0 (Debian package) - addressed in versions 1.22.0-3+deb12u6, 1.26.2-1+deb13u1
gstreamer1-plugins-ugly-free (Red Hat package) - addressed in versions 1.22.12-4.el9_7, 1.24.11-2.el10_1
gstreamer1-plugins-bad-free-devel - update to 1.22.12-5.0.1
gstreamer1-plugins-bad-free-libs - update to 1.22.12-5.0.1
gstreamer1-plugins-bad-free - update to 1.22.12-5.0.1
gstreamer1-plugins-base-devel - update to 1.22.12-5.0.1
gstreamer1-plugins-base - update to 1.22.12-5.0.1
mingw-gstreamer1-plugins-good - addressed in versions 1.26.11-1.fc42, 1.26.11-1.fc43
mingw-gstreamer1-plugins-base - addressed in versions 1.26.11-1.fc42, 1.26.11-1.fc43
mingw-gstreamer1-plugins-bad-free - addressed in versions 1.26.11-1.fc42, 1.26.11-1.fc43
mingw-gstreamer1 - addressed in versions 1.26.11-1.fc42, 1.26.11-1.fc43
gstreamer1-doc - update to 1.28.1-1
gstreamer1-devel - update to 1.28.1-1
gstreamer1 - update to 1.28.1-1

• https://www.zerodayinitiative.com/advisories/ZDI-26-168/
• https://gstreamer.freedesktop.org/security/sa-2026-0004.html

• Multiple vulnerabilities in GStreamer
• Debian update for gst-plugins-base1.0
• openEuler 24.03 LTS SP1 update for gstreamer1-plugins-base
• openEuler 24.03 LTS update for gstreamer1-plugins-base
• openEuler 24.03 LTS SP3 update for gstreamer1-plugins-base
• openEuler 24.03 LTS SP2 update for gstreamer1-plugins-base
• Fedora 42 update for mingw-gstreamer1, mingw-gstreamer1-plugins-bad-free, mingw-gstreamer1-plugins-base, mingw-gstreamer1-plugins-good
• Fedora 43 update for mingw-gstreamer1, mingw-gstreamer1-plugins-bad-free, mingw-gstreamer1-plugins-base, mingw-gstreamer1-plugins-good
• Ubuntu update for gst-plugins-base1.0
• Anolis OS update for gstreamer1
• Red Hat Enterprise Linux 10 update for multiple packages
• Red Hat Enterprise Linux 9 update for multiple packages
• Anolis OS update for gstreamer1-plugins-base
• Anolis OS update for gstreamer1-plugins-bad-free
• openEuler 22.03 LTS SP4 update for gstreamer1-plugins-base
• openEuler 20.03 LTS SP4 update for gstreamer1-plugins-base
• Red Hat Enterprise Linux 8 update for multiple packages
• Anolis OS update for gstreamer1-plugins-good
• Red Hat Enterprise Linux 8 update for multiple packages
• Red Hat Enterprise Linux 8 update for multiple packages
• Red Hat Enterprise Linux 8 update for multiple packages
• Red Hat Enterprise Linux 8 update for multiple packages
• Ubuntu update for gst-plugins-base1.0