Bug 2531927 - CVE-2026-45763 suricata: Suricata: Denial of Service via un-enforced Lua sandbox memory limits [fedora-all]
Summary: CVE-2026-45763 suricata: Suricata: Denial of Service via un-enforced Lua sand...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: suricata
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Steve Grubb
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["a5229702-7d01-451b-8434-2...
Depends On:
Blocks: CVE-2026-45763
TreeView+ depends on / blocked
 
Reported: 2026-09-11 15:04 UTC by Joel Chamberlain
Modified: 2026-09-11 15:04 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Joel Chamberlain 2026-09-11 15:04:32 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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,when Lua rule execution is enabled, the Lua sandbox memory limit was not consistently enforced for new allocations. Certain Lua allocation patterns could exceed `security.lua.max-bytes` without triggering the intended memory limit, making the configured sandbox limit unreliable. This requires Lua rules to be enabled and an affected Lua script/rule to be loaded. Version 8.0.5 contains a fix. As a workaround, disable `security.lua.allow-rules` unless Lua rules are required.


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