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
- Caddyserver Caddy — versions < 2.11.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (Exploit, x_refsource_MISC)
- security-advisories@github.com (Exploit, Third Party Advisory, x_refsource_MISC)
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.