{"affected":[{"affectedData":[{"product":"Jenkins","vendor":"Jenkins project","versions":[{"lessThanOrEqual":"2.274","status":"affected","version":"unspecified","versionType":"custom"},{"lessThanOrEqual":"LTS 2.263.1","status":"affected","version":"unspecified","versionType":"custom"}]}],"source":"jenkinsci-cert@googlegroups.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*","matchCriteriaId":"1D0A8DA2-6151-430D-9FC2-1332E25B4E3B","versionEndIncluding":"2.263.1","vulnerable":true},{"criteria":"cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*","matchCriteriaId":"9A6F1AB1-BFB3-448F-BDAC-2A3487CBFEB6","versionEndIncluding":"2.274","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows users with Agent/Configure permission to choose agent names that cause Jenkins to override the global `config.xml` file."},{"lang":"es","value":"Jenkins versiones 2.274 y anteriores, LTS versiones 2.263.1 y anteriores, permite a usuarios con permiso Agent/Configure elegir nombres de agente que causa que Jenkins anule el archivo global \"config.xml\"."}],"id":"CVE-2021-21605","lastModified":"2026-06-17T03:35:51.660","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"MEDIUM","accessVector":"NETWORK","authentication":"SINGLE","availabilityImpact":"PARTIAL","baseScore":6.0,"confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:M/Au:S/C:P/I:P/A:P","version":"2.0"},"exploitabilityScore":6.8,"impactScore":6.4,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":true}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.0,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":2.1,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-01-13T16:15:13.600","references":[{"source":"jenkinsci-cert@googlegroups.com","tags":["Vendor Advisory"],"url":"https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-2021"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-2021"}],"sourceIdentifier":"jenkinsci-cert@googlegroups.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-22"}],"source":"nvd@nist.gov","type":"Primary"}]}