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CVE-2026-45770

Suricata lua: excessive flow variable registration can bypass sandbox PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
OISF / suricataaffected >= 8.0.0, < 8.0.5

CWE

CWE-693, CWE-787

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.