CVE-2026-22261

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

27/01/2026

Last modified:

27/01/2026

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS v3.1 Severity and Metrics:

Base Score: 3.70 LOW
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

Base Score 3.x

3.70

Severity 3.x

LOW

References to Advisories, Solutions, and Tools

https://github.com/OISF/suricata/commit/3f0725b34c7871c2de4346c8af872f10f4501e44
https://github.com/OISF/suricata/commit/af246ae7ab1b70c09f83c0619b253095ccc18667
https://github.com/OISF/suricata/security/advisories/GHSA-5jvg-5j3p-34cf
https://redmine.openinfosecfoundation.org/issues/8156