CVE-2026-2921
GStreamer RIFF Palette Integer Overflow Remote Code Execution Vulnerability
02 Description
GStreamer RIFF Palette Integer Overflow Remote Code Execution Vulnerability
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.88% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 58.9% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-07-21.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-03-13 20:41Z7 MO AGO
- Last updated
- 2026-07-21 12:04Z3 MO AGO
- Reserved
- 2026-02-20
- Assigning CNA
- zdi
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-190Integer Overflow or WraparoundBase
- Data version
- 5.2
- Document digest
- dc64050cd8417d5a9934e5f02a28b0becfe807a1aece0a81ea3006e5e8755049
05 Affected products
06 References
- www.zerodayinitiative.comZDI-26-168https://www.zerodayinitiative.com/advisories/ZDI-26-168/
- gitlab.freedesktop.orgvendor-provided URLhttps://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/e3a99c35266fc92dd6a18ac5fde028d0cda559e6
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2026/03/msg00018.html
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-2921
- bugzilla.redhat.comRHBZ#2447496https://bugzilla.redhat.com/show_bug.cgi?id=2447496
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2921.json
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:7850
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:7673
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:8854
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:6259
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:19024
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:6750
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:9487
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:9446
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:9447
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:9488
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:8876
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:8874
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:8857
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:8862
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:6300
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:19180
07 Fixed in
AlmaLinux 8
- gstreamer1-plugins-bad-free Fixed in 1.16.1-6.el8_10
- gstreamer1-plugins-bad-free-devel Fixed in 1.16.1-6.el8_10
- gstreamer1-plugins-base Fixed in 1.16.1-6.el8_10
- gstreamer1-plugins-base-devel Fixed in 1.16.1-6.el8_10
- gstreamer1-plugins-good Fixed in 1.16.1-6.el8_10
- gstreamer1-plugins-good-gtk Fixed in 1.16.1-6.el8_10
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- gstreamer1-plugins-bad-free Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-7.el9_8
- gstreamer1-plugins-bad-free-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-7.el9_8
- gstreamer1-plugins-bad-free-libs Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-7.el9_8
- gstreamer1-plugins-base Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-8.el9_8
- gstreamer1-plugins-base-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-8.el9_8
- gstreamer1-plugins-base-tools Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-8.el9_8
- gstreamer1-plugins-good Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-7.el9_8
- gstreamer1-plugins-good-gtk Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-7.el9_8
- gstreamer1-plugins-ugly-free Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-4.el9_7
- Affected before 1.22.12-6.el9_8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- gstreamer1-plugins-bad-free Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-3.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-bad-free-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-3.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-bad-free-libs Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-3.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-base Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-base-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-base-tools Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-good Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-good-gtk Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-ugly-free Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- gstreamer1-plugins-bad-free Fixed in 1.16.1-6.el8_10
- gstreamer1-plugins-bad-free-devel Fixed in 1.16.1-6.el8_10
- gstreamer1-plugins-base Fixed in 1.16.1-6.el8_10
- gstreamer1-plugins-base-devel Fixed in 1.16.1-6.el8_10
- gstreamer1-plugins-good Fixed in 1.16.1-6.el8_10
- gstreamer1-plugins-good-gtk Fixed in 1.16.1-6.el8_10
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- gstreamer1-plugins-bad-free Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-7.el9_8
- gstreamer1-plugins-bad-free-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-7.el9_8
- gstreamer1-plugins-bad-free-libs Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-7.el9_8
- gstreamer1-plugins-base Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-8.el9_8
- gstreamer1-plugins-base-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-8.el9_8
- gstreamer1-plugins-base-tools Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-8.el9_8
- gstreamer1-plugins-good Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-7.el9_8
- gstreamer1-plugins-good-gtk Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-5.el9_7
- Affected before 1.22.12-7.el9_8
- gstreamer1-plugins-ugly-free Fixed
A version is affected if any line below covers it.
- Affected before 1.22.12-4.el9_7
- Affected before 1.22.12-6.el9_8
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 10
- gstreamer1-plugins-bad-free Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-3.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-bad-free-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-3.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-bad-free-libs Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-3.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-base Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-base-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-base-tools Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-good Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-good-gtk Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
- gstreamer1-plugins-ugly-free Fixed
A version is affected if any line below covers it.
- Affected before 1.24.11-2.el10_1
- Affected before 1.26.7-2.el10_2
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- gst-plugins-base1.0 Fixed in 1.22.0-3+deb12u6
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- gst-plugins-base1.0 Fixed in 1.26.2-1+deb13u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- gst-plugins-base1.0 Fixed in 1.28.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- gst-plugins-base1.0 Fixed in 1.20.1-1ubuntu0.6
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- gst-plugins-base1.0 Fixed in 1.24.2-1ubuntu0.4
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- gst-plugins-base1.0 Fixed in 1.26.6-1ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- gst-plugins-base1.0 Fixed in 1.8.3-1ubuntu0.3+esm4Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- gst-plugins-base1.0 Fixed in 1.14.5-0ubuntu1~18.04.3+esm3Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- gst-plugins-base1.0 Fixed in 1.16.3-0ubuntu1.4+esm2Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.