CVE-2025-26042 Information

Description

Uptime Kuma >== 1.23.0 has a ReDoS vulnerability specifically when an administrator creates a notification through the web service. If a string is provided it triggers catastrophic backtracking in the regular expression leading to a ReDoS attack.

Reference

https://github.com/louislam/uptime-kuma/issues/5574 https://github.com/louislam/uptime-kuma/pull/5573