VulnerabilityAnalyzed
CVE-2026-52844
An unauthenticated remote client can bypass Caddy path-scoped auth/deny routes protecting /private/*.
HIGH 7.5EPSS 0.62%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.62% probability · 48th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22, CWE-284
- Affected
- caddyserver/caddy
- Source
- security-advisories@github.com
References
- https://github.com/caddyserver/caddy/security/advisories/GHSA-qrp7-cvwr-j2c6Third Party Advisory, Exploit
- https://github.com/caddyserver/caddy/security/advisories/GHSA-qrp7-cvwr-j2c6Third Party Advisory, Exploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.