Bug 2454375 (CVE-2026-31933)

Summary: CVE-2026-31933 Suricata: Suricata: Denial of Service due to specially crafted network 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, a network Intrusion Detection System (IDS), Intrusion Prevention System (IPS), and Network Security Monitoring (NSM) engine. A remote attacker can exploit this vulnerability by sending specially crafted network traffic. This can cause Suricata to slow down significantly, leading to a denial of service (DoS) in IDS mode, which impacts the system's ability to detect and prevent threats.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2454448, 2454453    
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Description OSIDB Bzimport 2026-04-02 15:01:24 UTC 
Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, specially crafted traffic can cause Suricata to slow down, affecting performance in IDS mode. This issue has been patched in versions 7.0.15 and 8.0.4.