Description
Uptime Kuma through 2.5.8 contains a race condition in the Socket.IO first-run setup handler that allows unauthenticated attackers to create an additional administrator account. Attackers can send concurrent setup requests during the bcrypt hashing window to bypass the empty user table check, then modify monitors, API keys, and enable disableAuth.
Related CPE's
Could not find any relations
References
CVSS impact metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
4.8 · Medium
Information
Source identifier
Vulnerability status
Deferred
Published
2026-10-30T12:16:42.100Z
8 hours agoLast modified
2026-10-30T19:23:25.493Z
1 hour ago