---
id: CVE-2026-92003
title: >-
  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…
summary: >-
  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…
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'
cwe:
  - CWE-400
  - CWE-770
vendor: MISP
product: MISP
affected:
  - MISP < 2.5.46
published: '2026-09-15'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T13:42:48.523'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92003'
references:
  - url: 'https://github.com/MISP/MISP/commit/2bf887433'
    label: 5a6e4751-2f3f-4070-9419-94fb35b644e8
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-15T12:31:54.934768Z'
cvssSource: cna
ingestedAt: '2026-09-15T12:36:50.174Z'
epss: 0.00442
epssPercentile: 0.37693
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.