{"id":"CVE-2026-45692","summary":"Caddy: Remote Admin Authorization Bypass in `/config` API via Array Index Normalization","details":"Caddy is an extensible server platform that uses TLS by default. From 2.4.0 until 2.11.3, the authorization layer and the /config traversal layer do not agree on what object the path refers to. In this case, a path authorized for one config object is accepted, but then resolves to a different config object during traversal. This happens because the authorization layer uses string prefix matching and the /config traversal layer parses array indices numerically using strconv.Atoi(). This vulnerability is fixed in 2.11.3.","aliases":["GHSA-x5w9-xh9r-mvfc","GO-2026-5743"],"modified":"2026-07-08T08:13:29.967475788Z","published":"2026-06-23T17:55:11.317Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45692.json","cwe_ids":["CWE-187","CWE-863"],"cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45692.json"},{"type":"ADVISORY","url":"https://github.com/caddyserver/caddy/security/advisories/GHSA-x5w9-xh9r-mvfc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45692"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/caddyserver/caddy","events":[{"introduced":"bc2210247861340c644d9825ac2b2860f8c6e12a"},{"fixed":"cc58caa1099240ef1a4c280b892260b380a85c86"}],"database_specific":{"cpe":"cpe:2.3:a:caddyserver:caddy:*:*:*:*:*:*:*:*","source":["AFFECTED_FIELD","CPE_RANGE"],"extracted_events":[{"introduced":"2.4.0"},{"fixed":"2.11.3"}]}}],"versions":["v2.11.2","v2.11.1","v2.11.0","v2.11.0-beta.2","v2.11.0-beta.1","v2.10.2","v2.10.1","v2.10.0","v2.10.0-beta.4","v2.10.0-beta.3","v2.9.1","v2.10.0-beta.2","v2.10.0-beta.1","v2.9.0","v2.9.0-beta.3","v2.9.0-beta.2","v2.9.0-beta.1","v2.8.4","v2.8.3","v2.8.2","v2.8.1","v2.8.0","v2.8.0-rc.1","v2.8.0-beta.2","v2.8.0-beta.1","v2.7.5","v2.7.4","v2.7.3","v2.7.2","v2.7.1","v2.7.0","v2.7.0-beta.2","v2.7.0-beta.1","v2.6.4","v2.6.3","v2.6.2","v2.6.1","v2.6.0","v2.6.0-beta.5","v2.6.0-beta.4","v2.6.0-beta.3","v2.6.0-beta.2","v2.6.0-beta.1","v2.5.2","v2.5.1","v2.5.0","v2.5.0-rc.1","v2.5.0-beta.1","v2.4.6","v2.4.5","v2.4.4","v2.4.3","v2.4.2","v2.4.1","v2.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45692.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"}]}