{"id":"CVE-2020-2166","aliases":["GHSA-w598-25hm-jqx3"],"url":"https://o3.security/vulnerability/CVE-2020-2166","summary":"RCE vulnerability in Jenkins Pipeline: AWS Steps Plugin","details":"Pipeline: AWS Steps Plugin 1.40 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types. This results in a remote code execution (RCE) vulnerability exploitable by users able to provide YAML input files to Pipeline: AWS Steps Plugin’s build steps.\n\nPipeline: AWS Steps Plugin 1.41 configures its YAML parser to only instantiate safe types.","published":"2020-03-25T17:15:15.467Z","modified":"2026-07-09T00:13:34.468209Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"de.taimos:pipeline-aws","fixedVersion":"1.41"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2020/03/25/2"},{"type":"ADVISORY","url":"https://jenkins.io/security/advisory/2020-03-25/#SECURITY-1741"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2166"},{"type":"PACKAGE","url":"https://github.com/jenkinsci/pipeline-aws-plugin"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T00:13:34.468209Z"}}