CVE-2026-92003

Medium

Description

Affected versions of MISP do not consistently apply the existing authentication-failure logging throttle. Two API authentication failure branches wrote directly to the Log model: - API requests with no authentication key; - requests supplying an API key with an incorrect length Unlike other authentication failures, these paths bypassed _shouldLog(), so every request could create another durable auth_fail entry. Version affected: ≤2.5.45

SeverityMedium

CVSS6.9

Exploit probability—

ProductMISP

PublishedSep 15, 2026

First seenSep 15, 2026

Weakness typeCWE-770Allocation of resources without limits CWE-400Uncontrolled resource consumption

How to fix

Update

MISP MISP2.5.46 or later

Patches

github.com/MISP/MISP/commit/2bf887433

Affected products

Product	Affected versions	Fixed in
MISP MISP	v < 2.5.46	2.5.46

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