Description
ntfy before 2.22.0 allows SSRF because of an unanchored regular expression for web push endpoint URLs.
References3
Metrics
- CVSS 3.1
-
6.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 20 · as of 13 November 2026
- CWE
- CWE-777CWE-94
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.