CVE-2025-26042
Uptime Kuma Regular Expression Denial of Service 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.
INFO
Published Date :
March 17, 2025, 7:15 p.m.
Last Modified :
March 19, 2025, 7:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.5
Exploitability Score :
0.5
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-26042.
| URL | Resource |
|---|---|
| https://github.com/louislam/uptime-kuma/issues/5574 | |
| https://github.com/louislam/uptime-kuma/pull/5573 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-26042 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-26042 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 19, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:H Added CWE CWE-1333 -
New CVE Received by [email protected]
Mar. 17, 2025
Action Type Old Value New Value Added 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. Added Reference https://github.com/louislam/uptime-kuma/issues/5574 Added Reference https://github.com/louislam/uptime-kuma/pull/5573
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-26042 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-26042
weaknesses.