Bug 2538437 (CVE-2026-57225)

Summary: CVE-2026-57225 suricata: Suricata: Denial of Service due to NULL pointer dereference in dataset loading
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: low    
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. A NULL pointer dereference vulnerability exists when loading JSON or NDJSON datasets. This occurs because the system incorrectly assumes a configured `value_key` will always resolve to a string. A trusted or untrusted dataset or rule feed containing a non-string value for this key can trigger the flaw, causing Suricata to crash during startup, configuration testing, or rule reloading, leading to a Denial of Service (DoS).
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Bug Depends On: 2539179    
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Description OSIDB Bzimport 2026-09-22 18:33:20 UTC
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, src/datasets-context-json.c assumes that a configured JSON or NDJSON dataset value_key resolves to a string. A trusted or untrusted dataset or rule feed containing a non-string value for that key can cause a NULL pointer dereference during startup, configuration test mode, or rule reload, crashing Suricata before traffic processing. This issue is fixed in version 8.0.6.