{"id":"CVE-2026-92700","published":"2026-09-23T17:58:45Z","modified":"2026-09-23T19:23:08Z","title":"Caddy: fileHidden() case-sensitive pattern bypass — exposes \"hidden\" files via case variation","vendor":"caddyserver","product":"caddy","tier":"tail","description":{"text":"Caddy is an extensible server platform that uses TLS by default. In version 2.11.3 and earlier, in modules/caddyhttp/fileserver/staticfiles.go, fileHidden() uses case-sensitive filepath.Match checks, so case variants can bypass hide rules on case-insensitive filesystems or when mixed-case paths coexist and expose files intended to be hidden.","provenance":"source","from":"CVE.org"},"cvss":{"score":6.3,"severity":"MEDIUM","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00412,"percentile":0.35293,"provenance":"source"},"cwes":[{"id":"CWE-178","name":"Improper Handling of Case Sensitivity"}],"references":[{"url":"https://github.com/caddyserver/caddy/security/advisories/GHSA-j8px-rmrx-76h9","tags":["x_refsource_CONFIRM"]}],"priority":{"score":11.5,"factors":[{"name":"EPSS percentile","points":7.06},{"name":"CVSS severity","points":4.41}]},"vendorSlug":"caddyserver","affectedVersions":[{"vendor":"caddyserver","product":"caddy","versions":["<= 2.11.3"]}],"affected":[{"ecosystem":"Go","package":"github.com/caddyserver/caddy/v2","vulnerableRanges":["<2.11.4"],"patched":["2.11.4"],"from":["GO-2026-6512"],"provenance":"source"}],"euvd":{"id":"EUVD-2026-85515","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-caddyserver-caddy-cve-2026-77281","parents":[{"from":"CVE-2026-77281","to":"CVE-2026-92700","relation":"related","confidence":"high","kind":"lineage","evidence":[{"kind":"osv-related","provenance":"source","id":"GHSA-j8px-rmrx-76h9","via":"reference","url":"https://github.com/caddyserver/caddy/security/advisories/GHSA-j8px-rmrx-76h9"}]}]}}