
CVE catalog
CVE-2026-1940
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_R
- Severity
- Medium · CVSS 5.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.23% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | gst-plugins-good1.0 | sid | 1.28.8-1 | fixed |
| Debian | gst-plugins-good1.0 | forky | 1.28.8-1 | fixed |
| Debian | gst-plugins-good1.0 | trixie | 1.26.2-1+deb13u2 | fixed |
| Debian | gst-plugins-good1.0 | trixie-security | 1.26.2-1+deb13u2 | fixed |
| Debian | gst-plugins-good1.0 | bookworm | 1.22.0-5+deb12u3 | vulnerable |
| Debian | gst-plugins-good1.0 | bookworm-security | 1.22.0-5+deb12u4 | fixed |
| Cpe | gst-plugins-bad1.0 | Not reported | Not reported | vulnerable |
| Cpe | gst-plugins-good1.0 | Not reported | Not reported | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | pro | 1.22.4-1ubuntu1 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | pro | 1.22.4-1ubuntu2 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | pro | 1.22.4-1ubuntu4 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | pro | 1.22.9-2ubuntu1 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | pro | 1.24.0-1ubuntu3 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | pro | 1.24.0-1ubuntu4 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | pro | 1.24.2-1ubuntu4 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | pro | 1.24.2-1ubuntu4+esm1 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | pro | 1.24.2-1ubuntu4+esm2 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | 25.10 | 1.26.0-1ubuntu2 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | 25.10 | 1.26.2-1ubuntu1 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | 25.10 | 1.26.3-1ubuntu1 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | 25.10 | 1.26.4-1ubuntu1 | vulnerable |
| Ubuntu | gst-plugins-bad1.0 | 25.10 | 1.26.5-1ubuntu2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | gst-plugins-good1.0 | source | sid | 1.28.1-1 | not yet assigned | Not reported | Not reported |
| Debian | gst-plugins-good1.0 | source | forky | 1.28.1-1 | not yet assigned | Not reported | Not reported |
| Debian | gst-plugins-good1.0 | source | trixie | 1.26.2-1+deb13u2 | not yet assigned | Not reported | Not reported |
| Debian | gst-plugins-good1.0 | source | bookworm | 1.22.0-5+deb12u4 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [gstreamer1.0-gtk3]Affected
Source package: [gst-plugins-good1.0]
Details (4)
1.22.0-5+deb12u3· amd64 · bookwormAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u3· arm64 · bookwormAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u2· amd64 · bookworm-securityAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u2· arm64 · bookworm-securityAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
- [gstreamer1.0-plugins-good]Affected
Source package: [gst-plugins-good1.0]
Details (4)
1.22.0-5+deb12u3· amd64 · bookwormAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u3· arm64 · bookwormAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u2· amd64 · bookworm-securityAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u2· arm64 · bookworm-securityAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
- [gstreamer1.0-pulseaudio]Affected
Source package: [gst-plugins-good1.0]
Details (4)
1.22.0-5+deb12u3· amd64 · bookwormAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u3· arm64 · bookwormAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u2· amd64 · bookworm-securityAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u2· arm64 · bookworm-securityAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
- [gstreamer1.0-qt5]Affected
Source package: [gst-plugins-good1.0]
Details (4)
1.22.0-5+deb12u3· amd64 · bookwormAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u3· arm64 · bookwormAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u2· amd64 · bookworm-securityAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u2· arm64 · bookworm-securityAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
- [gstreamer1.0-qt6]Affected
Source package: [gst-plugins-good1.0]
Details (4)
1.22.0-5+deb12u3· amd64 · bookwormAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u3· arm64 · bookwormAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u2· amd64 · bookworm-securityAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
1.22.0-5+deb12u2· arm64 · bookworm-securityAffected · Fixed:
1.22.0-5+deb12u4nvd · gst-plugins-good1.0 · debian · bookworm
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-1940]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-1940]
- [https://security-tracker.debian.org/tracker/CVE-2026-1940]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1940.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0525.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]