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CVE-2025-26042

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.

POC

Reference

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

Github

No PoCs found on GitHub currently.