Go/github.com/caddyserver/caddy/v2 CVE-2026-27585: medium 6.5, EPSS 0.37%

Caddy: Improper sanitization of glob characters in file matcher may lead to bypassing security protections

Action: Upgrade github.com/caddyserver/caddy/v2 to 2.11.1 or later.

go get github.com/caddyserver/caddy/v2@v2.11.1

Affected

Fixed versions

Sources

• osv: GHSA-4xrr-hq4w-6vf4
• nvd: CVE-2026-27585
• https://github.com/caddyserver/caddy/security/advisories/GHSA-4xrr-hq4w-6vf4
• https://caddyserver.com/docs/caddyfile/directives#directive-order
• https://github.com/caddyserver/caddy
• https://github.com/caddyserver/caddy/blob/68d50020eef0d4c3398b878f17c8092ca5b58ca0/modules/caddyhttp/fileserver/matcher.go#L361
• https://github.com/caddyserver/caddy/blob/68d50020eef0d4c3398b878f17c8092ca5b58ca0/modules/caddyhttp/fileserver/matcher.go#L398
• https://github.com/caddyserver/caddy/releases/tag/v2.11.1
• https://pkg.go.dev/vuln/GO-2026-4535

CVE-2026-27585 · published 2026-02-24T20:16:55Z · modified 2026-02-27T19:51:57Z · JSON