CVE-2026-31933

Published: Apr 2, 2026Modified: Jun 17, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, specially crafted traffic can cause Suricata to slow down, affecting performance in IDS mode. This issue has been patched in versions 7.0.15 and 8.0.4.

Affected (2)

Products: Oisf: Suricata

Oisf

1 product

Suricata

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Oisf Suricata	Before 7.0.15
Oisf Suricata	From 8.0.0 to 8.0.4

Related CWEs

CWE-407

Inefficient Algorithmic Complexity

An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.

References (2)

https://github.com/OISF/suricata/security/advisories/GHSA-hvp5-gpr6-j4gp

Source: security-advisories@github.com

Vendor Advisory

https://redmine.openinfosecfoundation.org/issues/8272

Source: security-advisories@github.com

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Timeline

No history available yet.