CVE-2026-45767

Medium

Description

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.

SeverityMedium
CVSS4.4
Exploit probability—
ProductOisf Suricata
PublishedSep 10, 2026
First seenSep 10, 2026

How to fix

Update
  • oisf suricata7.0.16, 8.0.5 or later

Affected products

ProductAffected versionsFixed in
oisf suricata7.0.0 ≤ v < 7.0.16, 8.0.0 ≤ v < 8.0.57.0.16, 8.0.5

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