CVE-2026-100229
Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: out-of-bounds write in gst_h266_parser_parse_dci() due to off-by-one array bound check
A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write beyond the bounds of an internal structure. An attacker could exploit this by providing a specially crafted H.266 bitstream to a third-party application that uses this library API, potentially causing a crash or memory corruption. No standard GStreamer pipeline element currently invokes the affected code path.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
6.5
Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: out-of-bounds write in gst_h266_parser_parse_dci() due to off-by-one array bound check
A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write beyond the bounds of an internal structure. An attacker could exploit this by providing a specially crafted H.266 bitstream to a third-party application that uses this library API, potentially causing a crash or memory corruption. No standard GStreamer pipeline element currently invokes the affected code path.
- Record
CVE-2026-100229- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-787
- Updated
- 2026-11-06
EUVDEUVD-2026-100958
6.5
A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write beyond the bounds of an internal structure. An attacker could exploit this by providing a specially crafted H.266 bitstream to a third-party application that uses this library API, potentially causing a crash or memory corruption. No standard GStreamer pipeline element currently invokes the affected code path.
- Record
EUVD-2026-100958- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Updated
- 2026-11-06
GitHub AdvisoriesGHSA-8g53-2c85-3xhf
6.5
A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds...
A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write beyond the bounds of an internal structure. An attacker could exploit this by providing a specially crafted H.266 bitstream to a third-party application that uses this library API, potentially causing a crash or memory corruption. No standard GStreamer pipeline element currently invokes the affected code path.
- Record
GHSA-8g53-2c85-3xhf- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-787
- Updated
- 2026-11-02
NVD
6.5
A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write beyond the bounds of an internal structure. An attacker could exploit this by providing a specially crafted H.266 bitstream to a third-party application that uses this library API, potentially causing a crash or memory corruption. No standard GStreamer pipeline element currently invokes the affected code path.
- Record
CVE-2026-100229- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-787
- Updated
- 2026-11-06
OSVDEBIAN-CVE-2026-100229
6.5
A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write beyond the bounds of an internal structure. An attacker could exploit this by providing a specially crafted H.266 bitstream to a third-party application that uses this library API, potentially causing a crash or memory corruption. No standard GStreamer pipeline element currently invokes the affected code path.
- Record
DEBIAN-CVE-2026-100229- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Updated
- 2026-11-07
OSVUBUNTU-CVE-2026-100229
6.5
A flaw was found in GStreamer's H.266 codec parser library (libgstcodecparsers). An out-of-bounds write vulnerability exists in the DCI parsing function, where a reserved field value is incorrectly accepted, causing the parser to write beyond the bounds of an internal structure. An attacker could exploit this by providing a specially crafted H.266 bitstream to a third-party application that uses this library API, potentially causing a crash or memory corruption. No standard GStreamer pipeline element currently invokes the affected code path.
- Record
UBUNTU-CVE-2026-100229- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gst-plugins-bad1.0Debian:12 |
All versions, plus listed versions 1.22.0-41.22.0-4+deb12u11.22.0-4+deb12u21.22.0-4+deb12u31.22.0-4+deb12u4 Show 45 moreShow less1.22.0-4+deb12u51.22.0-4+deb12u61.22.0-4+deb12u71.22.0-4+deb12u81.22.1-11.22.10-11.22.3-11.22.3-21.22.4-11.22.7-11.22.8-11.22.9-11.22.9-21.23.1-11.23.2-11.23.90-11.24.0-11.24.1-11.24.1-21.24.1-31.24.1-41.24.10-11.24.10-21.24.10-2+hurd.11.24.10-31.24.11-11.24.11-21.24.11-31.24.12-11.24.12-21.24.12-31.24.2-11.24.2-21.24.2-31.24.2-41.24.3-11.24.4-11.24.4-21.24.5-11.24.6-11.24.7-11.24.8-11.24.8-21.24.9-11.25.1-1 |
None known |
gst-plugins-bad1.0Debian:13 |
All versions, plus listed versions 1.26.10-11.26.10-21.26.2-31.26.2-3+deb13u11.26.2-3+deb13u2 Show 38 moreShow less1.26.2-3+deb13u31.26.3-11.26.4-11.26.5-11.26.5-21.26.6-11.26.6-21.26.6-31.26.6-41.26.6-51.26.7-11.26.7-21.26.8-11.26.9-11.27.1-11.27.2-11.27.50-11.27.90-11.27.90-21.27.90-31.28.0-11.28.1-11.28.1-21.28.1-31.28.2-11.28.2-21.28.3-11.28.4-11.28.5-11.28.5-21.28.6-11.28.7-11.28.7-21.28.8-11.28.9-11.29.1-11.29.2-11.29.2-2 |
None known |
gst-plugins-bad1.0Debian:14 |
All versions, plus listed versions 1.26.10-11.26.10-21.26.2-31.26.3-11.26.4-1 Show 35 moreShow less1.26.5-11.26.5-21.26.6-11.26.6-21.26.6-31.26.6-41.26.6-51.26.7-11.26.7-21.26.8-11.26.9-11.27.1-11.27.2-11.27.50-11.27.90-11.27.90-21.27.90-31.28.0-11.28.1-11.28.1-21.28.1-31.28.2-11.28.2-21.28.3-11.28.4-11.28.5-11.28.5-21.28.6-11.28.7-11.28.7-21.28.8-11.28.9-11.29.1-11.29.2-11.29.2-2 |
None known |
gst-plugins-bad1.0Ubuntu:Pro:14.04:LTS |
All versions, plus listed versions 1.2.0-3ubuntu51.2.1-1ubuntu11.2.1-1ubuntu21.2.2-1ubuntu11.2.2-1ubuntu2 Show 6 moreShow less1.2.2-1ubuntu41.2.3-1ubuntu11.2.3-1ubuntu21.2.4-1~ubuntu11.2.4-1~ubuntu1.11.2.4-1~ubuntu1.1+esm1 |
None known |
gst-plugins-bad1.0Ubuntu:Pro:16.04:LTS |
All versions, plus listed versions 1.6.0-1ubuntu11.6.1-1ubuntu11.6.2-1ubuntu11.7.1-1ubuntu11.7.1-1ubuntu3 Show 11 moreShow less1.7.1-1ubuntu41.7.2-1ubuntu11.7.90-1ubuntu21.7.91-1ubuntu11.8.0-1ubuntu11.8.1-1ubuntu0.11.8.2-1ubuntu0.11.8.2-1ubuntu0.21.8.3-1ubuntu0.21.8.3-1ubuntu0.2+esm11.8.3-1ubuntu0.2+esm2 |
None known |
gst-plugins-bad1.0Ubuntu:Pro:18.04:LTS |
All versions, plus listed versions 1.12.3-1ubuntu11.12.3-1ubuntu21.12.3-2ubuntu11.12.4-2ubuntu11.12.4-2ubuntu2 Show 8 moreShow less1.13.1-1ubuntu11.13.91-1ubuntu11.14.0-1ubuntu11.14.1-1ubuntu1~ubuntu18.04.11.14.4-1ubuntu1~ubuntu18.04.11.14.5-0ubuntu1~18.04.11.14.5-0ubuntu1~18.04.1+esm11.14.5-0ubuntu1~18.04.1+esm2 |
None known |
gst-plugins-bad1.0Ubuntu:Pro:20.04:LTS |
All versions, plus listed versions 1.16.1-1ubuntu11.16.1-1ubuntu31.16.1-1ubuntu41.16.1-1ubuntu51.16.1-1ubuntu6 Show 9 moreShow less1.16.1-1ubuntu81.16.2-1ubuntu11.16.2-1ubuntu21.16.2-2ubuntu11.16.2-2.1ubuntu11.16.3-0ubuntu11.16.3-0ubuntu1.11.16.3-0ubuntu1.1+esm11.16.3-0ubuntu1.1+esm2 |
None known |
gst-plugins-bad1.0Ubuntu:Pro:22.04:LTS |
All versions, plus listed versions 1.18.5-1ubuntu11.18.5-1ubuntu31.20.0-2ubuntu21.20.1-1ubuntu21.20.3-0ubuntu11.20.3-0ubuntu1.11.20.3-0ubuntu1.1+esm21.20.3-0ubuntu1.1+esm3 |
None known |
gst-plugins-bad1.0Ubuntu:Pro:24.04:LTS |
All versions, plus listed versions 1.22.4-1ubuntu11.22.4-1ubuntu21.22.4-1ubuntu41.22.9-2ubuntu11.24.0-1ubuntu3 Show 4 moreShow less1.24.0-1ubuntu41.24.2-1ubuntu41.24.2-1ubuntu4+esm11.24.2-1ubuntu4+esm2 |
None known |
gst-plugins-bad1.0Ubuntu:26.10 |
All versions, plus listed versions 1.28.2-1ubuntu11.28.2-1ubuntu21.28.4-1ubuntu11.28.4-1ubuntu21.28.6-1ubuntu1 |
None known |
gst-plugins-bad1.0Ubuntu:26.04:LTS |
All versions, plus listed versions 1.26.5-1ubuntu21.27.2-1ubuntu11.27.90-1ubuntu21.28.0-1ubuntu21.28.1-2ubuntu2 Show 4 moreShow less1.28.1-2ubuntu31.28.2-1ubuntu11.28.2-1ubuntu1.11.28.2-1ubuntu1.2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | EUVD, NVD, OSV | |
| facts | CVE List | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-100229 is a medium vulnerability (CVSS 6.5) in Red Hat Enterprise Linux 10, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. No source names a fixed version.
References
Left out here: 50 versions. The JSON record has them.