Out-of-bounds read in Suricata - #VU162657
Published: November 9, 2026
Vulnerability identifier: #VU162657
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a highly privileged local attacker to disclose Suricata process memory to a Lua script or terminate Suricata.
The vulnerability exists due to insufficient length validation in Suricata's Lua dataset add method when a supplied length exceeds the source string's heap allocation. A highly privileged local attacker can trigger this out-of-bounds read through a locally installed Lua script that supplies a mismatched length while Lua rules are enabled.
Affected software
Suricata
Remediation
Install security update from vendor's website.
Suricata - update to 8.0.7