ntfy before 2.22.0 allows SSRF because of an unanchored regular expression for web push endpoint URLs.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. Apr 23, 2026 · NIST NVD

   Detected

   ntfy before 2.22.0 allows SSRF because of an unanchored regular expression for web push endpoint URLs.

2. Jul 4, 2026 · NIST NVD

   Updated

   ntfy before 2.22.0 allows SSRF because of an unanchored regular expression for web push endpoint URLs.

Sources

• CVE.orgVulnerability recordCVE-2026-39087

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-39087

  ntfy before 2.22.0 allows SSRF because of an unanchored regular expression for web push endpoint URLs.

  nvd.nist.gov

References

• Reference · gist.github.com
• Reference · github.com
• Reference · ntfy.sh