{"id":"CVE-2018-1000861","aliases":["GHSA-hhpm-5cp2-hg4x"],"url":"https://o3.security/vulnerability/CVE-2018-1000861","summary":"Deserialization of Untrusted Data in Jenkins","details":"A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in stapler/core/src/main/java/org/kohsuke/stapler/MetaClass.java that allows attackers to invoke some methods on Java objects by accessing crafted URLs that were not intended to be invoked this way.","published":"2018-12-10T14:29:01.417Z","modified":"2026-10-24T10:31:02.876504530Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.98326,"percentile":0.99915,"asOf":"2026-09-16"},"cisaKev":{"dateAdded":"2022-02-10","dueDate":"2022-08-10","knownRansomwareCampaignUse":false},"exploitsKnown":6,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.138.4"},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.154"}],"fix":{"url":"https://github.com/jenkinsci/jenkins/commit/47f38d714c99e1841fb737ad1005618eb26ed852","label":"jenkinsci/jenkins@47f38d7"},"references":[{"type":"WEB","url":"http://www.securityfocus.com/bid/106176"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-1000861"},{"type":"ADVISORY","url":"http://packetstormsecurity.com/files/166778/Jenkins-Remote-Code-Execution.html"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHBA-2019:0024"},{"type":"ADVISORY","url":"https://jenkins.io/security/advisory/2018-12-05/#SECURITY-595"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1000861"},{"type":"WEB","url":"https://github.com/jenkinsci/jenkins/commit/47f38d714c99e1841fb737ad1005618eb26ed852"}],"provenance":{"sources":["OSV.dev","CISA KEV","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:31:02.876504530Z"}}