CVE-2026-45770
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Starting in version 8.0.0 and prior to version 8.0.5, a Lua rule that registers too many flow variables can corrupt Lua detection state and may bypass Suricata's restricted Lua sandbox. This requires an affected Lua script/rule to be loaded. Excessive flow variables being registered may also cause Suricata to crash. Version 8.0.5 contains a fix. As a workaround, disable security.lua.allow-rules unless Lua rules are required.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OISF | suricata | >= 8.0.0, < 8.0.5 | affected |
Weaknesses
- CWE-693: CWE-693: Protection Mechanism Failure
- CWE-787: CWE-787: Out-of-bounds Write
References
- https://github.com/OISF/suricata/security/advisories/GHSA-653j-cc95-vj4c
- https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315
- https://redmine.openinfosecfoundation.org/issues/8556
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