Bug 2454377 (CVE-2026-31937)

Summary: CVE-2026-31937 Suricata: Suricata: Denial of Service via DCERPC buffering inefficiency
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, prevention, and security monitoring engine. A remote attacker could exploit an inefficiency in the Distributed Computing Environment/Remote Procedure Call (DCERPC) buffering mechanism. This could lead to a denial of service (DoS) due to significant performance degradation, impacting the availability of the network monitoring service.
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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: 2454450, 2454451    
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Description OSIDB Bzimport 2026-04-02 15:01:32 UTC
Suricata is a network IDS, IPS and NSM engine. Prior to version 7.0.15, inefficiency in DCERPC buffering can lead to a performance degradation. This issue has been patched in version 7.0.15.