{"id":"CVE-2026-90800","revision":"f34ce1f782c4407294c189f5092d94d8","records":[{"revision":"f34ce1f782c4407294c189f5092d94d8","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90800","aliases":[],"title":"Apache CouchDB: Auth bypass in prefixed _users and _replicator databases","description":"Missing authorisation checks in chttpd in Apache CouchDB 3.5.2 and below on all platforms allows any request to read the full contents of a prefixed _user or _replicator database via an unauthorised API endpoint.\n\n\nThe use of prefixed system databases is very rare.\n\nUsers are recommended to upgrade to version 3.5.3, which fixes this issue.","state":0,"publishedAt":"2026-10-20T15:40:47.497+00:00","modifiedAt":"2026-10-20T18:10:09.013+00:00","affected":[{"ecosystem":"Vendor product","name":"Apache CouchDB","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Apache Software Foundation\",\n                    \"product\": \"Apache CouchDB\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.5.3\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/S:N/AU:Y/R:U/V:C/RE:M/U:Amber","score":8.1,"severity":"HIGH"}],"references":["https://lists.apache.org/thread.html/pj83174r8f8f64odf47fwhozbfjtot0f","https://lists.apache.org/thread/vng8vqjwgy1qlrv14wzrgs7pv4gj7gwr"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90800","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90800","identifiers":["CVE-2026-90800"]},"retained":false,"historicalAffected":[]}],"coverage":[]}