{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-17T09:34:23.169","vulnerabilities":[{"cve":{"id":"CVE-2020-1955","sourceIdentifier":"security@apache.org","published":"2020-05-20T14:15:11.550","lastModified":"2024-11-21T05:11:43.880","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"CouchDB version 3.0.0 shipped with a new configuration setting that governs access control to the entire database server called `require_valid_user_except_for_up`. It was meant as an extension to the long standing setting `require_valid_user`, which in turn requires that any and all requests to CouchDB will have to be made with valid credentials, effectively forbidding any anonymous requests. The new `require_valid_user_except_for_up` is an off-by-default setting that was meant to allow requiring valid credentials for all endpoints except for the `/_up` endpoint. However, the implementation of this made an error that lead to not enforcing credentials on any endpoint, when enabled. CouchDB versions 3.0.1[1] and 3.1.0[2] fix this issue."},{"lang":"es","value":"CouchDB versión 3.0.0, es enviada con una nueva configuración que rige el control de acceso a todo el servidor de base de datos llamada \"require_valid_user_except_for_up\". Se suponía que una extensión del antiguo ajuste \"require_valid_user\", que a su vez requiere que todas y cada una de las peticiones hacia CouchDB tengan que hacerse con credenciales válidas, prohibiendo efectivamente cualquier petición anónima. El nuevo \"require_valid_user_except_for_up\" es un ajuste desactivado por defecto que se supone que permite requerir credenciales válidas para todos los endpoints excepto para el endpoint \"/_up\". Sin embargo, la implementación de éste cometió un error que conllevó a no aplicar las credenciales sobre ningún endpoint, cuando estaba habilitado. CouchDB versiones 3.0.1[1] y 3.1.0[2]  corrige este problema."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","baseScore":6.8,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-306"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:apache:couchdb:3.0.0:*:*:*:*:*:*:*","matchCriteriaId":"6CF039B4-F4AB-4A07-9BE5-5FA7C73A23B4"}]}]}],"references":[{"url":"https://docs.couchdb.org/en/master/cve/2020-1955.html","source":"security@apache.org","tags":["Mitigation","Vendor Advisory"]},{"url":"https://docs.couchdb.org/en/master/cve/2020-1955.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mitigation","Vendor Advisory"]}]}}]}