CVE-2026-92002 MISP: Authentication failure logging suppressed during Redis unavailability
Attackers can hide brute-force attempts from logs when Redis is down, preventing detection of authentication failures in MISP.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-92002?
CVE-2026-92002 is a medium-severity vulnerability in MISP, published on 15 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Affected versions of MISP use Redis to throttle repeated authentication-failure log entries. The intent is to avoid excessive duplicate logs while still recording failed authentication activity.
However, User->setupRedis() returns false when Redis cannot be reached. The vulnerable _shouldLog() logic only returned true when a Redis instance existed and no throttle key was present. Therefore, when Redis was unavailable, the function did not allow the log write at all, effectively silencing authentication-failure logging for the duration of the outage.
Version affected: ≤2.5.45
Weakness: CWE-778
Which versions are affected by CVE-2026-92002?
How do I fix CVE-2026-92002?
No fix has been published for CVE-2026-92002 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-92002 being exploited?
There is no known exploitation of CVE-2026-92002 in the wild and no public exploit code.
Sources
Also known as GHSA-f6c4-mg5x-232x.