# CVE-2026-92003

## Summary

- **CVE ID:** CVE-2026-92003
- **Severity:** MEDIUM
- **CVSS Score:** 6.9 (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-770, CWE-400
- **Published:** Sep 15, 2026
- **Last Modified:** Sep 15, 2026

## 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

## Affected Products

- MISP — MISP (0)

## References

- [CNA](https://github.com/MISP/MISP/commit/2bf887433)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.44%
- **EPSS Percentile:** 37.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._