{"schemaVersion":3,"id":"CVE-2021-21697","aliases":["GHSA-cv2w-q8c3-xjv7","BIT-jenkins-2021-21697"],"status":"published","duplicateOf":null,"title":null,"description":"Jenkins 2.318 and earlier, LTS 2.303.2 and earlier allows any agent to read and write the contents of any build directory stored in Jenkins with very few restrictions.","dates":{"published":"2021-11-04T16:30:43.000Z","modified":"2024-08-03T18:23:28.765Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.1,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Maven","score":9.1,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":10,"impact":8.7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.1,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.4,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01602,"percentile":0.75469,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.01602},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01602,"percentile":0.75469}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01602,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01602,"percentile":0.75469}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"jenkins project","product":"jenkins","name":"Jenkins","label":"jenkins","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, ≤ 2.318","noFixRecorded":false,"fixedIn":null},{"text":"≥ unspecified, ≤ LTS 2.303.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, ≤ 2.318 | ≥ unspecified, ≤ LTS 2.303.2","eol":null,"hubHref":"/vendor/jenkins_project/jenkins"},{"vendor":"jenkins","product":"jenkins","name":"Jenkins","label":"jenkins","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 2.303.2","noFixRecorded":false,"fixedIn":null},{"text":"≤ 2.318","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 2.303.2 | ≤ 2.318","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"jenkins","label":"Jenkins","category":"server-app"}},"hubHref":"/vendor/jenkins/jenkins"},{"vendor":"org.jenkins-ci.main","product":"jenkins-core","name":"org.jenkins-ci.main:jenkins-core","label":"jenkins-core","ecosystem":"Maven","cpePart":null,"purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","purlType":"maven","versions":[{"text":"< 2.303.3","noFixRecorded":false,"fixedIn":null},{"text":"≥ 2.304, < 2.319","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.303.3 | ≥ 2.304, < 2.319","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2428","label":"www.jenkins.io/security/advisory/2021-11-04/","hostname":"www.jenkins.io","tags":["X Refsource CONFIRM","WEB","Patch","Vendor Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2021/11/04/3","label":"www.openwall.com/lists/oss-security/2021/11/04/3","hostname":"www.openwall.com","tags":["Mailing List","X Refsource MLIST","WEB","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21697","label":"nvd.nist.gov/vuln/detail/CVE-2021-21697","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/jenkinsci/jenkins/commit/cf388d2a04e6016d23eb93fa3cc804f2554b98f0","label":"github.com/jenkinsci/jenkins/commit/cf388d2a04e6016d23eb93fa3cc804f2554b98f0","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/jenkinsci/jenkins/commit/eae33841b587da787f37d5b6c8451d483edc04d9","label":"github.com/jenkinsci/jenkins/commit/eae33841b587da787f37d5b6c8451d483edc04d9","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/jenkinsci/jenkins","label":"github.com/jenkinsci/jenkins","hostname":"github.com","tags":["PACKAGE"]}],"lineage":{"upstream":[],"downstream":["RHSA-2021:4799","RHSA-2021:4801","RHSA-2021:4827","RHSA-2021:4829","RHSA-2021:4833","RHSA-2022:0055"],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-11-04T16:30:43.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-03T18:23:28.765Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T11:33:23.280Z","stale":false,"partial":false}}