CVE-2026-1940
CVE-2026-1940 · Gstreamer: incomplete fix of cve-2026-1940
This page contains facts from public vulnerability sources. Check the original advisory before updating.
An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The patch added a size validation check lsize + 8 > size, but it does not account for the GST_ROUND_UP_2(lsize) used in the actual offset calculation. When lsize is an odd number, the parser advances more bytes than validated, causing OOB read.
CVSS 5.1 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
red hat enterprise linux 10
No fix published
red hat enterprise linux 6
No fix published
red hat enterprise linux 7
No fix published
red hat enterprise linux 8
No fix published
red hat enterprise linux 9
No fix published
gst-plugins-good1.0 Debian:12
- Versions
- 1.22.0-5
- 1.22.0-5+deb12u1
- 1.22.0-5+deb12u2
- 1.22.0-5+deb12u3
- Affected ranges
- ECOSYSTEM: < 1.22.0-5+deb12u4
Update to 1.22.0-5+deb12u4
gst-plugins-good1.0 Debian:13
- Versions
- 1.26.2-1
- 1.26.2-1+deb13u1
- Affected ranges
- ECOSYSTEM: < 1.26.2-1+deb13u2
Update to 1.26.2-1+deb13u2
gst-plugins-good1.0 Debian:14
- Versions
- 1.26.10-1
- 1.26.2-1
- 1.26.3-1
- 1.26.4-1
- 1.26.5-1
- 1.26.5-2
- 1.26.5-2+hurd.1
- 1.26.5-3
- 1.26.6-1
- 1.26.7-1
- 1.26.8-1
- 1.26.9-1
- 1.27.1-1
- 1.27.2-1
- 1.27.50-1
- 1.27.50-2
- 1.27.90-1
- 1.28.0-1
- Affected ranges
- ECOSYSTEM: < 1.28.1-1
Update to 1.28.1-1
gst-plugins-bad1.0 Ubuntu:Pro:14.04:LTS
- Versions
- 1.2.0-3ubuntu5
- 1.2.1-1ubuntu1
- 1.2.1-1ubuntu2
- 1.2.2-1ubuntu1
- 1.2.2-1ubuntu2
- 1.2.2-1ubuntu4
- 1.2.3-1ubuntu1
- 1.2.3-1ubuntu2
- 1.2.4-1~ubuntu1
- 1.2.4-1~ubuntu1.1
- 1.2.4-1~ubuntu1.1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
gst-plugins-bad1.0 Ubuntu:Pro:16.04:LTS
- Versions
- 1.6.0-1ubuntu1
- 1.6.1-1ubuntu1
- 1.6.2-1ubuntu1
- 1.7.1-1ubuntu1
- 1.7.1-1ubuntu3
- 1.7.1-1ubuntu4
- 1.7.2-1ubuntu1
- 1.7.90-1ubuntu2
- 1.7.91-1ubuntu1
- 1.8.0-1ubuntu1
- 1.8.1-1ubuntu0.1
- 1.8.2-1ubuntu0.1
- 1.8.2-1ubuntu0.2
- 1.8.3-1ubuntu0.2
- 1.8.3-1ubuntu0.2+esm1
- 1.8.3-1ubuntu0.2+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
gst-plugins-bad1.0 Ubuntu:Pro:18.04:LTS
- Versions
- 1.12.3-1ubuntu1
- 1.12.3-1ubuntu2
- 1.12.3-2ubuntu1
- 1.12.4-2ubuntu1
- 1.12.4-2ubuntu2
- 1.13.1-1ubuntu1
- 1.13.91-1ubuntu1
- 1.14.0-1ubuntu1
- 1.14.1-1ubuntu1~ubuntu18.04.1
- 1.14.4-1ubuntu1~ubuntu18.04.1
- 1.14.5-0ubuntu1~18.04.1
- 1.14.5-0ubuntu1~18.04.1+esm1
- 1.14.5-0ubuntu1~18.04.1+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
gst-plugins-bad1.0 Ubuntu:Pro:20.04:LTS
- Versions
- 1.16.1-1ubuntu1
- 1.16.1-1ubuntu3
- 1.16.1-1ubuntu4
- 1.16.1-1ubuntu5
- 1.16.1-1ubuntu6
- 1.16.1-1ubuntu8
- 1.16.2-1ubuntu1
- 1.16.2-1ubuntu2
- 1.16.2-2ubuntu1
- 1.16.2-2.1ubuntu1
- 1.16.3-0ubuntu1
- 1.16.3-0ubuntu1.1
- 1.16.3-0ubuntu1.1+esm1
- 1.16.3-0ubuntu1.1+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
gst-plugins-bad1.0 Ubuntu:Pro:22.04:LTS
- Versions
- 1.18.5-1ubuntu1
- 1.18.5-1ubuntu3
- 1.20.0-2ubuntu2
- 1.20.1-1ubuntu2
- 1.20.3-0ubuntu1
- 1.20.3-0ubuntu1.1
- 1.20.3-0ubuntu1.1+esm2
- 1.20.3-0ubuntu1.1+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
gst-plugins-bad1.0 Ubuntu:Pro:24.04:LTS
- Versions
- 1.22.4-1ubuntu1
- 1.22.4-1ubuntu2
- 1.22.4-1ubuntu4
- 1.22.9-2ubuntu1
- 1.24.0-1ubuntu3
- 1.24.0-1ubuntu4
- 1.24.2-1ubuntu4
- 1.24.2-1ubuntu4+esm1
- 1.24.2-1ubuntu4+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
gst-plugins-bad1.0 Ubuntu:25.10
- Versions
- 1.26.0-1ubuntu2
- 1.26.2-1ubuntu1
- 1.26.3-1ubuntu1
- 1.26.4-1ubuntu1
- 1.26.5-1ubuntu2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://access.redhat.com/security/cve/CVE-2026-1940
- https://bugzilla.redhat.com/show_bug.cgi?id=2436932
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/4854
- https://gstreamer.freedesktop.org/security/sa-2026-0001.html
- https://security-tracker.debian.org/tracker/CVE-2026-1940
- https://nvd.nist.gov/vuln/detail/CVE-2026-1940