{"id":"CVE-2020-2166","aliases":["EUVD-2022-5503","GHSA-w598-25hm-jqx3"],"status":"published","title":"RCE vulnerability in Jenkins Pipeline: AWS Steps Plugin","description":"Jenkins Pipeline: AWS Steps Plugin 1.40 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.02034,"percentile":0.81243,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-502"],"published":"2020-03-25T16:05:37Z","modified":"2026-10-24T10:30:32Z","fixes":[{"ecosystem":"Maven","package":"de.taimos:pipeline-aws","fixed_in":["1.41"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"de.taimos:pipeline-aws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41"}]}]},{"source":"osv","ecosystem":"Maven","package":"de.taimos:pipeline-aws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41"}]}],"versions":["1.0","1.1","1.10","1.11","1.12","1.13","1.14","1.15","1.16","1.17","1.18","1.19","1.2","1.20","1.21","1.22","1.23","1.24","1.25","1.26","1.27","1.28","1.29","1.3","1.30","1.31","1.32","1.33","1.34","1.35","1.36","1.37","1.38","1.39","1.4","1.40","1.5","1.6","1.7","1.8","1.9"]}],"products":[{"vendor":"jenkins","product":"pipeline\\"},{"vendor":"jenkins project","product":"jenkins pipeline: aws steps plugin"}],"references":[{"url":"https://jenkins.io/security/advisory/2020-03-25/#SECURITY-1741","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"http://www.openwall.com/lists/oss-security/2020/03/25/2","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2166","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-w598-25hm-jqx3"},{"url":"https://github.com/jenkinsci/pipeline-aws-plugin","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-2166","description":"Jenkins Pipeline: AWS Steps Plugin 1.40 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.","status":"published","published":"2020-03-25T16:05:37Z","modified":"2024-08-04T07:01:40.876Z","updated_at":"2026-11-02T14:35:51.206854Z"}],"euvd":[{"id":"EUVD-2022-5503","description":"Jenkins Pipeline: AWS Steps Plugin 1.40 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.","status":"published","published":"2020-03-25T16:05:37Z","modified":"2024-08-04T07:01:40Z","updated_at":"2026-11-03T03:08:10.371372Z"}],"ghsa":[{"id":"GHSA-w598-25hm-jqx3","title":"RCE vulnerability in Jenkins Pipeline: AWS Steps Plugin","description":"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.","status":"published","published":"2022-05-24T17:12:40Z","modified":"2023-01-31T05:00:56Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-20","CWE-502"],"updated_at":"2026-11-02T14:36:29.100018Z"}],"nvd":[{"id":"CVE-2020-2166","description":"Jenkins Pipeline: AWS Steps Plugin 1.40 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.","status":"published","published":"2020-03-25T17:15:15.467Z","modified":"2026-06-17T03:11:54.493Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:05:56.580228Z"}],"osv":[{"id":"CVE-2020-2166","description":"Jenkins Pipeline: AWS Steps Plugin 1.40 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.","status":"published","published":"2020-03-25T17:15:15.467Z","modified":"2026-10-24T10:30:32.575052911Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:15.534837Z"},{"id":"GHSA-w598-25hm-jqx3","title":"RCE vulnerability in Jenkins Pipeline: AWS Steps Plugin","description":"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.","status":"published","published":"2022-05-24T17:12:40Z","modified":"2023-11-08T04:02:54.348863Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-20","CWE-502"],"updated_at":"2026-11-02T15:46:58.04805Z"}]}}