CSRF in Caddyserver Caddy

CVE-2026-27589

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the local caddy admin API (default listen `127.0.0.1:2019`) exposes a state-changing `POST /load` endpoint that replaces the entire running configura…

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.002 (6.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-27589?
CVE-2026-27589 is a medium-severity vulnerability in Caddyserver Caddy, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2026-02-24.
How severe is CVE-2026-27589?
Medium severity. CVSS v3 base score is 6.5 out of 10.