CVE-2026-1940Gstreamer: incomplete fix of cve-2026-1940
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 10 and 3 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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 (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Analyzed
- Record last updated
- Mar 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | 10 | CNA record |
freedesktop gst-plugins-good freedesktop:gst-plugins-good | 1.0.0 | NVD |
gstreamer gstreamer gstreamer:gstreamer | before 1.28.1 | NVD |
debian debian_linux debian:debian_linux | 11.0; 12.0 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 7.0; 8.0; 9.0; 10.0 | NVD |
References
- https://access.redhat.com/security/cve/CVE-2026-1940vdb-entry, x-refsource-redhat, vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2436932issue-tracking, x-refsource-redhat, vendor-advisory
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/4854broken-link
- https://gstreamer.freedesktop.org/security/sa-2026-0001.htmlvendor-advisory
- https://security-tracker.debian.org/tracker/CVE-2026-1940third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.