{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-05T06:51:27.157","vulnerabilities":[{"cve":{"id":"CVE-2020-15240","sourceIdentifier":"security-advisories@github.com","published":"2020-10-21T18:15:12.813","lastModified":"2024-11-21T05:05:10.037","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"omniauth-auth0 (rubygems) versions >= 2.3.0 and < 2.4.1 improperly validate the JWT token signature when using the `jwt_validator.verify` method. Improper validation of the JWT token signature can allow an attacker to bypass authentication and authorization. You are affected by this vulnerability if all of the following conditions apply: 1. You are using `omniauth-auth0`. 2. You are using `JWTValidator.verify` method directly OR you are not authenticating using the SDK’s default Authorization Code Flow. The issue is patched in version 2.4.1."},{"lang":"es","value":"omniauth-auth0 (rubygems) versiones posteriores a 2.3.0 incluyéndola y versiones anteriores a 2.4.1, comprueban inapropiadamente la firma del token de JWT cuando utiliza el método \"jwt_validator.verify\".&#xa0;La comprobación inapropiada de la firma del token de JWT puede permitir a un atacante omitir la autenticación y la autorización.&#xa0;Estas afectado por esta vulnerabilidad si se cumplen todas las condiciones siguientes: 1. Está utilizando \"omniauth-auth0\".&#xa0;2. Está usando el método \"JWTValidator.verify\" directamente O no está autenticándose usando el Authorization Code Flow predeterminado del SDK.&#xa0;El problema está parcheado en la versión 2.4.1"}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":5.2},{"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:N","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":5.2}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:N","baseScore":5.8,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":4.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-287"},{"lang":"en","value":"CWE-347"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-347"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:auth0:omniauth-auth0:*:*:*:*:*:ruby:*:*","versionStartIncluding":"2.3.0","versionEndExcluding":"2.4.1","matchCriteriaId":"8273AC75-02BD-48A7-A599-36E93B268A73"}]}]}],"references":[{"url":"https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://rubygems.org/gems/omniauth-auth0","source":"security-advisories@github.com","tags":["Product","Vendor Advisory"]},{"url":"https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://rubygems.org/gems/omniauth-auth0","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Product","Vendor Advisory"]}]}}]}