CVE-2026-22261
Suricata eve/alert: http1 xff handling can lead to denial of service
- State
- Published
- Severity
- 3.7 Low
- Published
- Jan 27, 2026
- Updated
- Jan 27, 2026
- Reserved
- Jan 7, 2026
Description
Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, various inefficiencies in xff handling, especially for alerts not triggered in a tx, can lead to severe slowdowns. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, disable XFF support in the eve configuration. The setting is disabled by default.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.7 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L | GitHub_M |
Weaknesses
- CWE-1050 Excessive Platform Resource Consumption within a Loop
Affected Products
| Product | Versions |
|---|---|
suricataOISF |
|
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.