CVE-2026-22260: Suricata http1: infinite recursion in decompression

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-27 · updated 2026-06-17
Weakness: CWE-674

Description

Suricata is a network IDS, IPS and NSM engine. Starting in version 8.0.0 and prior to version 8.0.3, Suricata can crash with a stack overflow. Version 8.0.3 patches the issue. As a workaround, use default values for `request-body-limit` and `response-body-limit`.

Affected products

OISF suricata: from 8.0.0 before 8.0.3 — fixed in 8.0.3

How to fix

Upgrade to a fixed version: OISF suricata 8.0.3. Check the vendor advisory for mitigations.

References

https://github.com/OISF/suricata/commit/0dddac7278c8b9cf3c1e4c1c71e620a78ec1c185
https://github.com/OISF/suricata/security/advisories/GHSA-3gm8-84cm-5x22
https://redmine.openinfosecfoundation.org/issues/8185

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