CVSS 3.1
6.0 mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:HCVE-2025-26042
Medium (6.0). EPSS 0.4% chance of exploitation in the next 30 days. Fixed in uptime-kuma 2.0.0-beta.2.
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.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-31)
- CWE
- CWE-1333
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-hx7h-9vf7-5xhg | npm | uptime-kuma | >=1.15.0 <=1.23.16 | no fix published |
| GHSA-hx7h-9vf7-5xhg | npm | uptime-kuma | >=2.0.0-beta.0 <2.0.0-beta.2 | 2.0.0-beta.2 |