CVE-2026-1940
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | affected | |
| debian | bullseye | affected | |
| debian | forky | fixed | 1.28.1-1 |
| debian | sid | fixed | 1.28.1-1 |
| debian | trixie | affected | |
| sles | affected | | |
| rhel | 7.0 | affected | |
| rhel | 8.0 | affected | |
| rhel | 9.0 | affected | |
| rhel | 10.0 | affected | |
| debian | 11.0 | affected | |
| debian | 12.0 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| freedesktop | gst-plugins-good | 1.0.0 | |
| gstreamer | gstreamer | {"endExcluding":"1.28.1"} | 1.28.1 |
References
- 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://www.suse.com/security/cve/CVE-2026-1940.html
CWEs
CWE-125
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.