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.

INFO

Published Date :

2025-03-17T00:00:00.000Z

Last Modified :

2026-01-26T15:56:46.761Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2025-26042 vulnerability.

Vendors Products
Uptime.kuma
  • Uptime Kuma
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-26042.

URL Resource
https://github.com/louislam/uptime-kuma/commit/7a9191761dbef6551c2a0aa6eed5f693ba48d688 cve-icon cve-icon
https://github.com/louislam/uptime-kuma/issues/5574 cve-icon cve-icon
https://github.com/louislam/uptime-kuma/pull/5573 cve-icon cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact