Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a malicious rule could potentially overwrite any file on the file system on rule load or reload. Versions 7.0.16 and 8.0.5 fix the issue. Some workarounds are available. Preprocess `load`+ `save` rules to disallow absolute filenames for save, use Suricata's privilege dropping to limit writable files, and/or configure landlock in suricata.yaml.

A flaw was found in Suricata, a network Intrusion Detection System (IDS), Intrusion Prevention System (IPS), and Network Security Monitoring engine. A highly privileged remote attacker could exploit this vulnerability by crafting a malicious rule. When this rule is loaded or reloaded, it could allow the attacker to overwrite any file on the file system, leading to a loss of data integrity.

https://www.cve.org/CVERecord?id=CVE-2026-45767 https://nvd.nist.gov/vuln/detail/CVE-2026-45767 https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 https://github.com/OISF/suricata/security/advisories/GHSA-gfxq-gffp-w9rv https://redmine.openinfosecfoundation.org/issues/8546