Bug 2535590 (CVE-2026-46352)

Summary: CVE-2026-46352 Suricata: Suricata: Denial of Service via fragmented encapsulated traffic
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Suricata. Suricata's IP defragmentation code could deadlock when processing fragmented network traffic that contains an encapsulated tunnel protocol whose payload is also fragmented. This could allow a remote attacker to cause a Denial of Service (DoS) by making the system unresponsive.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2537372, 2537373    
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Description OSIDB Bzimport 2026-09-16 18:41:30 UTC
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, Suricata's IP defragmentation code could deadlock when processing fragmented traffic containing an encapsulated tunnel protocol whose payload is itself fragmented. Version 8.0.5 contains a fix. No known workarounds are available.