CVE-2025-26042

Medium

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.

SeverityMedium
CVSS6.0
Exploit probability—
ProductUptime-kuma
PublishedMar 17, 2025
First seenMar 17, 2025
Weakness typeCWE-1333CWE-1333

How to fix

Update
  • uptime-kuma2.0.0-beta.2 or later

Affected products

ProductAffected versionsFixed in
uptime-kumanpm1.15.0 ≤ v ≤ 1.23.16, 2.0.0-beta.0 ≤ v < 2.0.0-beta.22.0.0-beta.2

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