{"cve":"CVE-2025-26042","nvd":{"published":"2025-03-17T19:15:26.587","modified":"2026-06-17T09:01:26.100","status":"Deferred","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:H","score":6.0},"cwes":["CWE-1333"],"references":["https://github.com/louislam/uptime-kuma/commit/7a9191761dbef6551c2a0aa6eed5f693ba48d688","https://github.com/louislam/uptime-kuma/issues/5574","https://github.com/louislam/uptime-kuma/pull/5573"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:00:17.429720821+00:00"},"epss":{"cve":"CVE-2025-26042","score":0.00397,"percentile":0.3391,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hx7h-9vf7-5xhg","url":"https://osv.dev/vulnerability/GHSA-hx7h-9vf7-5xhg","summary":"Uptime Kuma's Regular Expression in pushdeeer and whapi file Leads to ReDoS Vulnerability Due to Catastrophic Backtracking","modified":"2025-08-07T14:42:07.036045Z","packages":[{"ecosystem":"npm","name":"uptime-kuma","purl":"pkg:npm/uptime-kuma","ranges":[">=1.15.0 <=1.23.16"],"fixed":[]},{"ecosystem":"npm","name":"uptime-kuma","purl":"pkg:npm/uptime-kuma","ranges":[">=2.0.0-beta.0 <2.0.0-beta.2"],"fixed":["2.0.0-beta.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}