CVE-2026-86476
Gstreamer1-plugins-base: gst-plugins-base: heap buffer overflow via unvalidated gstvideometa plane extents in gst_video_frame_map_id and video_meta_deserialize
A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
8.4
Gstreamer1-plugins-base: gst-plugins-base: heap buffer overflow via unvalidated gstvideometa plane extents in gst_video_frame_map_id and video_meta_deserialize
A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process.
- Record
CVE-2026-86476- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2026-100950
8.4
A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process.
- Record
EUVD-2026-100950- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8f88-phh5-g894
8.4
A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing...
A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process.
- Record
GHSA-8f88-phh5-g894- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
NVD
8.4
A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process.
- Record
CVE-2026-86476- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-05
OSVBELL-CVE-2026-86476
8.4
- Record
BELL-CVE-2026-86476- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-86476
8.4
A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process.
- Record
DEBIAN-CVE-2026-86476- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-05
OSVUBUNTU-CVE-2026-86476
8.4
A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process.
- Record
UBUNTU-CVE-2026-86476- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVAZL-108306 No score
CVE-2026-86476 affecting package gstreamer1-plugins-base 1.20.0-3
A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process.
- Record
AZL-108306- Updated
- 2026-11-05
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gstreamer1-plugins-baseAzure Linux:3 |
through 1.20.0-3 | None known |
gst-plugins-baseAlpaquita:23 |
1.20.4-r0 and later | None known |
gst-plugins-baseAlpaquita:25 |
1.26.1-r0 and later | None known |
gst-plugins-baseAlpaquita:stream |
1.22.1-r0 and later | None known |
gst-plugins-base1.0Debian:12 |
All versions, plus listed versions 1.22.0-31.22.0-3+deb12u11.22.0-3+deb12u21.22.0-3+deb12u31.22.0-3+deb12u4 Show 45 moreShow less1.22.0-3+deb12u51.22.0-3+deb12u61.22.0-3+deb12u71.22.1-11.22.10-11.22.2-11.22.3-11.22.3-21.22.4-11.22.5-11.22.6-11.22.7-11.22.8-11.22.9-11.23.1-11.23.1-21.23.2-11.23.2-21.23.90-11.24.0-11.24.0-21.24.1-11.24.10-11.24.11-11.24.11-21.24.11-31.24.12-11.24.2-11.24.3-11.24.4-11.24.4-1+hurd.11.24.5-11.24.6-11.24.7-11.24.7-21.24.7-31.24.7-41.24.8-11.24.9-11.25.1-11.25.1-21.25.1-31.25.1-41.25.1-51.25.50-1 |
None known |
gst-plugins-base1.0Debian:13 |
All versions, plus listed versions 1.26.10-11.26.2-11.26.2-1+deb13u11.26.2-1+deb13u21.26.3-1 Show 31 moreShow less1.26.4-11.26.5-11.26.5-21.26.6-11.26.6-21.26.6-31.26.7-11.26.8-11.26.9-11.27.1-11.27.2-11.27.2-21.27.2-31.27.50-11.27.50-21.27.90-11.28.0-11.28.1-11.28.2-11.28.2-21.28.3-11.28.4-11.28.5-11.28.6-11.28.6-21.28.7-11.28.8-11.29.1-11.29.1-21.29.1-31.29.2-1 |
None known |
gst-plugins-base1.0Debian:14 |
All versions, plus listed versions 1.26.10-11.26.2-11.26.3-11.26.4-11.26.5-1 Show 29 moreShow less1.26.5-21.26.6-11.26.6-21.26.6-31.26.7-11.26.8-11.26.9-11.27.1-11.27.2-11.27.2-21.27.2-31.27.50-11.27.50-21.27.90-11.28.0-11.28.1-11.28.2-11.28.2-21.28.3-11.28.4-11.28.5-11.28.6-11.28.6-21.28.7-11.28.8-11.29.1-11.29.1-21.29.1-31.29.2-1 |
None known |
gst-plugins-base1.0Ubuntu:Pro:16.04:LTS |
All versions, plus listed versions 1.6.0-1ubuntu11.6.1-1ubuntu11.6.2-1ubuntu11.7.1-1ubuntu11.7.2-1ubuntu1 Show 14 moreShow less1.7.90-1ubuntu11.7.91-1ubuntu11.8.0-1ubuntu11.8.1-1ubuntu0.11.8.2-1ubuntu0.11.8.2-1ubuntu0.21.8.3-1ubuntu0.11.8.3-1ubuntu0.21.8.3-1ubuntu0.31.8.3-1ubuntu0.3+esm11.8.3-1ubuntu0.3+esm21.8.3-1ubuntu0.3+esm31.8.3-1ubuntu0.3+esm41.8.3-1ubuntu0.3+esm5 |
None known |
gst-plugins-base1.0Ubuntu:Pro:18.04:LTS |
All versions, plus listed versions 1.12.3-11.12.4-11.13.1-1ubuntu11.13.91-1ubuntu11.14.0-1ubuntu1 Show 11 moreShow less1.14.0-2ubuntu11.14.1-1ubuntu1~ubuntu18.04.11.14.1-1ubuntu1~ubuntu18.04.21.14.4-1ubuntu1.1~ubuntu18.04.11.14.5-0ubuntu1~18.04.11.14.5-0ubuntu1~18.04.21.14.5-0ubuntu1~18.04.31.14.5-0ubuntu1~18.04.3+esm11.14.5-0ubuntu1~18.04.3+esm21.14.5-0ubuntu1~18.04.3+esm31.14.5-0ubuntu1~18.04.3+esm4 |
None known |
gst-plugins-base1.0Ubuntu:Pro:20.04:LTS |
All versions, plus listed versions 1.16.1-11.16.2-11.16.2-21.16.2-2ubuntu31.16.2-2ubuntu4 Show 10 moreShow less1.16.2-41.16.2-4ubuntu0.11.16.3-0ubuntu11.16.3-0ubuntu1.11.16.3-0ubuntu1.21.16.3-0ubuntu1.31.16.3-0ubuntu1.41.16.3-0ubuntu1.4+esm11.16.3-0ubuntu1.4+esm21.16.3-0ubuntu1.4+esm3 |
None known |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
gst-plugins-base1.0Ubuntu:22.04:LTS |
All versions, plus listed versions 1.18.5-11.19.90-11.20.0-11.20.0-21.20.1-1 Show 6 moreShow less1.20.1-1ubuntu0.11.20.1-1ubuntu0.21.20.1-1ubuntu0.41.20.1-1ubuntu0.51.20.1-1ubuntu0.61.20.1-1ubuntu0.7 |
None known |
gst-plugins-base1.0Ubuntu:24.04:LTS |
All versions, plus listed versions 1.22.6-11.22.7-11.22.8-11.22.10-11.24.1-1 Show 7 moreShow less1.24.1-1build11.24.2-11.24.2-1ubuntu0.11.24.2-1ubuntu0.21.24.2-1ubuntu0.31.24.2-1ubuntu0.41.24.2-1ubuntu0.5 |
None known |
gst-plugins-base1.0Ubuntu:26.10 |
All versions, plus listed versions 1.28.2-11.28.3-11.28.4-11.28.6-11.28.6-21.28.7-1 |
None known |
gst-plugins-base1.0Ubuntu:26.04:LTS |
All versions, plus listed versions 1.26.6-11.27.2-31.27.2-3build11.27.90-11.28.0-11.28.1-11.28.2-11.28.2-1ubuntu0.1 |
None known |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | 0xSemizzz/CVE-2026-86476 | 2026-10-23 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | NVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-86476 is a high vulnerability (CVSS 8.4) in Red Hat Enterprise Linux 10, published October 14, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 9th percentile. No source names a fixed version.
References
Left out here: 38 versions. The JSON record has them.