CVE-2025-26042 — MEDIUM (6.0)

Vulnerability 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.

CVSS Score

6.0

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-1333

References

FAQ

What is CVE-2025-26042?

CVE-2025-26042 is a vulnerability with a CVSS score of 6.0 (MEDIUM). 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 th...

How severe is CVE-2025-26042?

CVE-2025-26042 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-26042?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.