RCE in N/a

CVE-2026-39087

ntfy before 2.22.0 allows SSRF because of an unanchored regular expression.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.001 (21.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-94 — Code Injection

References

Frequently asked questions

What is CVE-2026-39087?: CVE-2026-39087 is a critical-severity vulnerability in N/a, classified under Code Injection. CVSS score: 9.8/10. Published 2026-04-23.
How severe is CVE-2026-39087?: Critical severity. CVSS v3 base score is 9.8 out of 10.