CVE-2026-94083Suricata before 8.0.7 has a DoH2 type confusion that can cause an invalid free, because cleanup code for the HTTP2 state is executed even though the actual state is HTTP1 (when there is a DoH2 reques…
Updated under an hour ago ()
Does this affect you?
It affects OISF Suricata. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
Suricata before 8.0.7 has a DoH2 type confusion that can cause an invalid free, because cleanup code for the HTTP2 state is executed even though the actual state is HTTP1 (when there is a DoH2 request with an HTTP1 to HTTP2 upgrade). This requires app-layer.protocols.doh2 to be enabled, which is the default in 8.x versions.
- CVSS
- 9.4 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
- Weakness (CWE)
- CWE-843
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Sep 22, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
OISF Suricata oisf:suricata (from the name) | from 8.0.0 before 8.0.7 | CNA record |
oisf suricata oisf:suricata | before 8.0.7 | NVD |
References
- https://forum.suricata.io/t/suricata-8-0-7-released/6467release-notes
- https://github.com/OISF/suricata/commit/e574009add9c208f319e1d9d15b3bb1229c88074patch
- https://github.com/OISF/suricata/compare/suricata-8.0.6...suricata-8.0.7release-notes
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.