CVE-2026-52844
Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, on Windows, Caddy path matchers treat /private\secret.txt as outside /private/*, but file_server later resolves the same request path as private\secret.txt on disk. An unauthenticated remote client can bypass Caddy path-scoped auth/deny routes protecting /private/*. This vulnerability is fixed in 2.11.4.
- CVSS 3.1
- 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-22, CWE-284
- Published
- Modified
- Record from
- the NVD, synced
Affected
- caddyserver:caddy
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-qrp7-cvwr-j2c6 | Go | github.com/caddyserver/caddy/v2 | <2.11.4 | 2.11.4 |
| GHSA-qrp7-cvwr-j2c6 | Go | github.com/caddyserver/caddy | <=1.0.5 | no fix published |
| GO-2026-5595 | Go | github.com/caddyserver/caddy/v2 | <2.11.4 | 2.11.4 |