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.
Metrics
Affected Vendors & Products
References
History
Thu, 24 Sep 2026 04:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Sun, 20 Sep 2026 03:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Suricata DoH2 Type Confusion Leads to Invalid Free |
Sun, 20 Sep 2026 01:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| First Time appeared |
Oisf
Oisf suricata |
|
| Weaknesses | CWE-843 | |
| CPEs | cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Oisf
Oisf suricata |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: mitre
Published: 2026-09-20T01:18:05.744Z
Updated: 2026-09-22T15:20:03.227Z
Reserved: 2026-09-20T01:18:05.348Z
Link: CVE-2026-94083
Updated: 2026-09-22T15:19:59.809Z
Status : Analyzed
Published: 2026-09-20T02:16:53.520
Modified: 2026-09-28T18:30:00.563
Link: CVE-2026-94083
No data.