CVE-2026-92002: MISP Redis unavailability silences authentication failure logging

CVE-2026-92002 · Severity: info · Published 2026-09-15

MISP is a threat intelligence platform that tracks security events, including failed authentication attempts. When Redis (an external cache service) becomes unavailable, the authentication-failure logging stops entirely, meaning security incidents go unrecorded and undetected during the outage. This reduces the ability to identify and respond to attack attempts.

Technologies: Misp. Vendors: Misp.

Quick answers

Is CVE-2026-92002 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-92002 being exploited in the wild.
How severe is CVE-2026-92002?
Informational severity, published 15 September 2026.
Which products and versions are affected?
Misp ≤2.5.45.
Is there a fix for CVE-2026-92002?
A patch was published on 2026-09-15: Fix available on GitHub commit a39b25d2f Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-92002 attacked?
It is attacked from the adjacent network, in a web application.
Am I affected by CVE-2026-92002?
Check whether you run Misp at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

MISP uses Redis to throttle duplicate authentication-failure log entries. The vulnerable _shouldLog() function has a fail-closed flaw: it returns false both when throttling is active and when Redis cannot be reached. When User->setupRedis() fails to connect to Redis, the logging mechanism incorrectly rejects all authentication-failure events, silencing security logs for the duration of the Redis outage. The root cause is improper error handling that conflates throttling logic with connection failure. This is a logic error in the logging flow that affects all MISP versions up to 2.5.45. The fix, available on GitHub, corrects _shouldLog() to distinguish between "Redis unavailable" and "throttle key present" conditions.

Affected products

  • MISP MISP ≤2.5.45

Timeline

  • 2026-09-15: disclosed
  • 2026-09-15: patched: Fix available on GitHub commit a39b25d2f

References

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