CVE-2026-73473
Gstreamer1-plugins-good: gstreamer: missing subindex entry count validation in avidemux leading to denial of service
A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Gstreamer1-plugins-good: gstreamer: missing subindex entry count validation in avidemux leading to denial of service
A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
- Record
CVE-2026-73473- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-06
EUVDEUVD-2026-117926
A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
- Record
EUVD-2026-117926- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-06
GitHub AdvisoriesGHSA-pgrm-9mgw-xj68
A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing...
A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
- Record
GHSA-pgrm-9mgw-xj68- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-06
NVD
A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
- Record
CVE-2026-73473- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-06
OSVDEBIAN-CVE-2026-73473
A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
- Record
DEBIAN-CVE-2026-73473- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-07
OSVUBUNTU-CVE-2026-73473
A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
- Record
UBUNTU-CVE-2026-73473- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-07
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gst-plugins-good1.0Debian:12 |
All versions, plus listed versions 1.22.0-51.22.0-5+deb12u11.22.0-5+deb12u21.22.0-5+deb12u31.22.0-5+deb12u4 Show 45 moreShow less1.22.1-11.22.10-11.22.3-11.22.3-21.22.4-11.22.5-11.22.6-11.22.7-11.22.8-11.22.8-21.22.8-31.22.9-11.23.1-11.23.2-11.23.90-11.24.0-11.24.1-11.24.1-21.24.10-11.24.11-11.24.11-21.24.11-31.24.11-41.24.11-51.24.12-11.24.2-11.24.3-11.24.4-11.24.5-11.24.6-11.24.7-11.24.8-11.24.9-11.25.1-11.25.1-21.25.1-31.25.50-11.25.90-11.25.90-21.26.0-11.26.1-11.26.10-11.26.2-11.26.3-11.26.4-1 |
None known |
gst-plugins-good1.0Debian: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 29 moreShow less1.26.4-11.26.5-11.26.5-21.26.5-2+hurd.11.26.5-31.26.6-11.26.7-11.26.8-11.26.9-11.27.1-11.27.2-11.27.50-11.27.50-21.27.90-11.28.0-11.28.1-11.28.2-11.28.2-21.28.2-31.28.2-41.28.3-11.28.4-11.28.5-11.28.6-11.28.7-11.28.8-11.28.9-11.29.1-11.29.2-1 |
None known |
gst-plugins-good1.0Debian:14 |
before 1.28.6-1, plus listed versions 1.26.10-11.26.2-11.26.3-11.26.4-11.26.5-1 Show 21 moreShow less1.26.5-21.26.5-2+hurd.11.26.5-31.26.6-11.26.7-11.26.8-11.26.9-11.27.1-11.27.2-11.27.50-11.27.50-21.27.90-11.28.0-11.28.1-11.28.2-11.28.2-21.28.2-31.28.2-41.28.3-11.28.4-11.28.5-1 |
1.28.6-1 |
gst-plugins-good1.0Ubuntu: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 less1.7.90-1ubuntu11.7.91-1ubuntu11.8.0-1ubuntu11.8.1-1ubuntu0.11.8.2-1ubuntu0.11.8.2-1ubuntu0.21.8.2-1ubuntu0.31.8.3-1ubuntu0.31.8.3-1ubuntu0.41.8.3-1ubuntu0.51.8.3-1ubuntu0.5+esm11.8.3-1ubuntu0.5+esm21.8.3-1ubuntu0.5+esm31.8.3-1ubuntu0.5+esm4 |
None known |
gst-plugins-good1.0Ubuntu:Pro:18.04:LTS |
All versions, plus listed versions 1.12.3-1ubuntu11.12.4-1ubuntu11.13.1-1ubuntu11.13.91-1ubuntu11.14.0-1ubuntu1 Show 9 moreShow less1.14.1-1ubuntu1~ubuntu18.04.11.14.4-1ubuntu1~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-good1.0Ubuntu:Pro:20.04:LTS |
All versions, plus listed versions 1.16.1-1ubuntu11.16.2-1ubuntu11.16.2-1ubuntu21.16.2-1ubuntu2.11.16.3-0ubuntu1 Show 7 moreShow less1.16.3-0ubuntu1.11.16.3-0ubuntu1.21.16.3-0ubuntu1.31.16.3-0ubuntu1.3+esm11.16.3-0ubuntu1.3+esm21.16.3-0ubuntu1.3+esm31.16.3-0ubuntu1.3+esm4 |
None known |
gst-plugins-good1.0Ubuntu:22.04:LTS |
All versions, plus listed versions 1.18.5-1ubuntu21.18.5-1ubuntu31.20.0-2ubuntu11.20.1-1ubuntu11.20.3-0ubuntu1 Show 9 moreShow less1.20.3-0ubuntu1.11.20.3-0ubuntu1.31.20.3-0ubuntu1.41.20.3-0ubuntu1.51.20.3-0ubuntu1.61.20.3-0ubuntu1.71.20.3-0ubuntu1.81.20.3-0ubuntu1.91.20.3-0ubuntu1.10 |
None known |
gst-plugins-good1.0Ubuntu:24.04:LTS |
All versions, plus listed versions 1.22.6-1ubuntu11.22.6-1ubuntu21.22.8-3ubuntu11.22.9-1ubuntu11.24.0-1ubuntu5 Show 11 moreShow less1.24.0-1ubuntu71.24.1-2ubuntu11.24.2-1ubuntu11.24.2-1ubuntu1.11.24.2-1ubuntu1.21.24.2-1ubuntu1.31.24.2-1ubuntu1.41.24.2-1ubuntu1.51.24.2-1ubuntu1.61.24.2-1ubuntu1.71.24.2-1ubuntu1.8 |
None known |
gst-plugins-good1.0Ubuntu:26.04:LTS |
All versions, plus listed versions 1.26.5-1ubuntu21.27.2-1ubuntu11.27.90-1ubuntu11.28.0-1ubuntu11.28.0-1ubuntu3 Show 6 moreShow less1.28.1-1ubuntu11.28.2-21.28.2-2ubuntu0.11.28.2-2ubuntu0.21.28.2-2ubuntu0.31.28.2-2ubuntu0.4 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | OSV | |
| affected, aliases, published, references | NVD, OSV | |
| affected, aliases, facts, references | OSV | |
| published | EUVD, NVD | |
| published | EUVD | |
| aliases, references | GitHub Advisories | |
| cwes, references, severity, title | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-73473 is a medium vulnerability (CVSS 5.5) in Gstreamer Gst-plugins-good, published November 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 2nd percentile. Fixed in gst-plugins-good1.0 1.28.6-1.
References
Left out here: 28 versions. The JSON record has them.