CVE-2026-22261: Oisf Suricata

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Oisf Suricata: before 7.0.14 (fixed in 7.0.14); from 8.0.0, before 8.0.3 (fixed in 8.0.3)

Published 2026-01-27. Last modified 2026-06-17.