{"id":"CVE-2021-21696","aliases":["BIT-jenkins-2021-21696","EUVD-2022-3513","GHSA-c5r9-rx53-q3gf","RHSA-2021:4799","RHSA-2021:4801","RHSA-2021:4827","RHSA-2021:4829","RHSA-2021:4833","RHSA-2022:0055"],"status":"published","title":"Agent-to-controller access control allowed writing to sensitive directory used by Jenkins Pipeline: Shared Groovy Libraries Plugin","description":"Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.02397,"percentile":0.8422,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-693"],"published":"2021-11-04T16:30:41Z","modified":"2026-10-24T10:30:41Z","fixes":[{"ecosystem":"Maven","package":"org.jenkins-ci.main:jenkins-core","fixed_in":["2.319","2.303.3"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"jenkins","fixed_in":["2.318.1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.jenkins-ci.main:jenkins-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.304"},{"last_affected":"2.318"},{"fixed":"2.319"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.jenkins-ci.main:jenkins-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.303.2"},{"fixed":"2.303.3"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"jenkins","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.318.1"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.jenkins-ci.main:jenkins-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.303.3"}]}],"versions":["1.396","1.397","1.398","1.399","1.400","1.401","1.403","1.404","1.405","1.406","1.407","1.408","1.409","1.409.1","1.409.2","1.409.3","1.410","1.411","1.412","1.413","1.414","1.415","1.416","1.417","1.418","1.419","1.420","1.421","1.422","1.423","1.424","1.424.1","1.424.2","1.424.3","1.424.4","1.424.5","1.424.6","1.425","1.426","1.427","1.428","1.429","1.430","1.431","1.432","1.433","1.434","1.435","1.436","1.437","1.438","1.439","1.440","1.441","1.442","1.443","1.444","1.445","1.446","1.447","1.447.1","1.447.2","1.448","1.449","1.450","1.451","1.452","1.453","1.454","1.455","1.456","1.457","1.458","1.459","1.460","1.461","1.462","1.463","1.464","1.465","1.466","1.466.1","1.466.2","1.467","1.468","1.469","1.470","1.471","1.472","1.473","1.474","1.475","1.476","1.477","1.478","1.479","1.480","1.480.1","1.480.2","1.480.3","1.481","1.482","1.483","1.484","1.485","1.486","1.487","1.488","1.489","1.490","1.491","1.492","1.493","1.494","1.495","1.496","1.497","1.498","1.499","1.500","1.501","1.502","1.503","1.504","1.505","1.506","1.507","1.508","1.509","1.509.1","1.509.2","1.509.2.JENKINS-14362-jzlib","1.509.2.JENKINS-8856-diag","1.509.3","1.509.3.JENKINS-14362-jzlib","1.509.4","1.510","1.511","1.512","1.513","1.514","1.515","1.516","1.516.JENKINS-14362-jzlib","1.517","1.518","1.518.JENKINS-14362-jzlib","1.519","1.520","1.521","1.522","1.523","1.524","1.525","1.526","1.527","1.528","1.529","1.530","1.531","1.532","1.532.1","1.532.1.JENKINS-19453","1.532.2","1.532.2.JENKINS-21622-diag","1.532.2.JENKINS-22395-diag","1.532.3","1.532.3.JENKINS-22395","1.532.3.JENKINS-22395-2","1.533","1.534","1.535","1.536","1.537","1.538","1.539","1.540","1.541","1.542","1.543","1.544","1.545","1.546","1.547","1.548","1.549","1.550","1.551","1.552","1.553","1.554","1.554.1","1.554.2","1.554.3","1.554.3.JENKINS-18065-ALLRM-all","1.554.3.JENKINS-18065-JENKINS-23945","1.555","1.556","1.557","1.558","1.559","1.560","1.561","1.562","1.563","1.564","1.565","1.565.1","1.565.1.JENKINS-22395-dropLinks","1.565.2","1.565.3","1.566","1.567","1.568","1.569","1.570","1.571","1.572","1.573","1.574","1.575","1.576","1.577","1.578","1.579","1.580","1.580.1","1.580.2","1.580.3","1.581","1.582","1.583","1.584","1.585","1.586","1.587","1.588","1.589","1.590","1.591","1.592","1.593","1.594","1.595","1.596","1.596.1","1.596.2","1.596.3","1.597","1.598","1.599","1.600","1.601","1.602","1.604","1.605","1.606","1.607","1.608","1.609","1.609.1","1.609.2","1.609.3","1.610","1.611","1.612","1.613","1.614","1.615","1.616","1.617","1.618","1.619","1.620","1.621","1.622","1.623","1.624","1.625","1.625.1","1.625.2","1.625.3","1.626","1.627","1.628","1.629","1.630","1.631","1.632","1.633","1.634","1.635","1.636","1.637","1.638","1.639","1.640","1.641","1.642","1.642.1","1.642.2","1.642.3","1.642.4","1.643","1.644","1.645","1.646","1.647","1.648","1.649","1.650","1.651","1.651.1","1.651.2","1.651.3","1.652","1.653","1.654","1.655","1.656","1.657","1.658","2.0","2.0-alpha-1","2.0-alpha-2","2.0-alpha-3","2.0-alpha-4","2.0-beta-1","2.0-beta-2","2.0-rc-1","2.1","2.10","2.100","2.101","2.102","2.103","2.104","2.105","2.106","2.107","2.107.1","2.107.2","2.107.3","2.108","2.109","2.11","2.110","2.111","2.112","2.113","2.114","2.115","2.116","2.117","2.118","2.119","2.12","2.120","2.121","2.121.1","2.121.2","2.121.3","2.122","2.123","2.124","2.125","2.126","2.127","2.128","2.129","2.13","2.130","2.131","2.132","2.133","2.134","2.135","2.136","2.137","2.138","2.138.1","2.138.2","2.138.3","2.138.4","2.14","2.140","2.141","2.142","2.143","2.144","2.145","2.146","2.147","2.148","2.149","2.15","2.150","2.150.1","2.150.2","2.150.3","2.151","2.152","2.153","2.154","2.155","2.156","2.157","2.158","2.159","2.16","2.160","2.161","2.162","2.163","2.164","2.164.1","2.164.2","2.164.3","2.165","2.166","2.167","2.168","2.169","2.17","2.170","2.171","2.172","2.173","2.174","2.175","2.176","2.176.1","2.176.2","2.176.3","2.176.4","2.177","2.178","2.179","2.18","2.180","2.181","2.182","2.183","2.184","2.185","2.186","2.187","2.189","2.19","2.19.1","2.19.2","2.19.3","2.19.4","2.190","2.190.1","2.190.2","2.190.3","2.191","2.192","2.193","2.194","2.195","2.196","2.197","2.198","2.199","2.2","2.20","2.200","2.201","2.202","2.203","2.204","2.204.1","2.204.2","2.204.3","2.204.4","2.204.5","2.204.6","2.205","2.206","2.207","2.208","2.209","2.21","2.210","2.211","2.212","2.213","2.214","2.215","2.216","2.217","2.218","2.219","2.22","2.220","2.221","2.222","2.222.1","2.222.3","2.222.4","2.223","2.224","2.225","2.226","2.227","2.228","2.229","2.23","2.230","2.231","2.232","2.233","2.234","2.235","2.235.1","2.235.2","2.235.3","2.235.4","2.235.5","2.236","2.237","2.238","2.239","2.24","2.240","2.241","2.242","2.243","2.244","2.245","2.246","2.247","2.248","2.249","2.249.1","2.249.2","2.249.3","2.25","2.250","2.251","2.252","2.253","2.254","2.255","2.256","2.257","2.258","2.259","2.26","2.260","2.261","2.262","2.263","2.263.1","2.263.2","2.263.3","2.263.4","2.264","2.265","2.266","2.267","2.268","2.269","2.27","2.270","2.271","2.272","2.273","2.274","2.275","2.276","2.277","2.277.1","2.277.2","2.277.3","2.277.4","2.278","2.279","2.28","2.280","2.281","2.282","2.283","2.284","2.285","2.286","2.287","2.288","2.289","2.289.1","2.289.2","2.289.3","2.29","2.290","2.291","2.292","2.293","2.294","2.295","2.296","2.297","2.298","2.299","2.3","2.30","2.300","2.301","2.302","2.303","2.303.1","2.303.2","2.31","2.32","2.32.1","2.32.2","2.32.3","2.33","2.34","2.35","2.36","2.37","2.38","2.39","2.4","2.40","2.41","2.42","2.43","2.44","2.45","2.46","2.46.1","2.46.2","2.46.3","2.47","2.48","2.49","2.5","2.50","2.51","2.52","2.53","2.54","2.55","2.56","2.57","2.58","2.59","2.6","2.60","2.60.1","2.60.2","2.60.3","2.61","2.62","2.63","2.64","2.65","2.66","2.67","2.68","2.69","2.7","2.7.1","2.7.2","2.7.3","2.7.4","2.70","2.71","2.72","2.73","2.73.1","2.73.2","2.73.3","2.74","2.75","2.76","2.77","2.78","2.79","2.8","2.80","2.81","2.82","2.83","2.84","2.85","2.86","2.87","2.88","2.89","2.89.1","2.89.2","2.89.3","2.89.4","2.9","2.90","2.91","2.92","2.93","2.94","2.95","2.96","2.97","2.98","2.99"]},{"source":"osv","ecosystem":"Maven","package":"org.jenkins-ci.main:jenkins-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.304"},{"fixed":"2.319"}]}],"versions":["2.304","2.305","2.306","2.307","2.308","2.309","2.311","2.312","2.313","2.314","2.315","2.316","2.317","2.318"]},{"source":"osv","ecosystem":"Red Hat:openshift:4.6::el8","package":"jenkins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.303.3.1637597493-1.el8"}]}],"bundled":14},{"source":"osv","ecosystem":"Red Hat:openshift:4.6::el8","package":"jenkins-2-plugins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.6.1637602169-1.el8"}]}],"bundled":14},{"source":"osv","ecosystem":"Red Hat:openshift:4.7::el8","package":"jenkins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.303.3.1637597018-1.el8"}]}],"bundled":14},{"source":"osv","ecosystem":"Red Hat:openshift:4.7::el8","package":"jenkins-2-plugins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.7.1637600997-1.el8"}]}],"bundled":14},{"source":"osv","ecosystem":"Red Hat:openshift:3.11::el7","package":"jenkins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.303.3.1637698110-1.el7"}]}],"bundled":14},{"source":"osv","ecosystem":"Red Hat:openshift:3.11::el7","package":"jenkins-2-plugins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.11.1637699107-1.el7"}]}],"bundled":14},{"source":"osv","ecosystem":"Red Hat:openshift:4.8::el8","package":"coreos-installer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9.0-8.rhaos4.8.el8"}]}],"bundled":15},{"source":"osv","ecosystem":"Red Hat:openshift:4.8::el8","package":"jenkins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.303.3.1637596565-1.el8"}]}],"bundled":15},{"source":"osv","ecosystem":"Red Hat:openshift:4.8::el8","package":"jenkins-2-plugins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.8.1637599935-1.el8"}]}],"bundled":15},{"source":"osv","ecosystem":"Red Hat:openshift:4.9::el8","package":"jenkins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.303.3.1637595827-1.el8"}]}],"bundled":14},{"source":"osv","ecosystem":"Red Hat:openshift:4.9::el8","package":"jenkins-2-plugins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.9.1637598812-1.el8"}]}],"bundled":14},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"jenkins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.319.2.1643288987-1.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"coreos-installer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.12.0-1.rhaos4.10.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"coreos-installer-bootinfra","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.12.0-1.rhaos4.10.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"coreos-installer-bootinfra-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.12.0-1.rhaos4.10.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"coreos-installer-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.12.0-1.rhaos4.10.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"coreos-installer-debugsource","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.12.0-1.rhaos4.10.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"jenkins-2-plugins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.10.1643404185-1.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el7","package":"cri-o","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.23.0-92.rhaos4.10.gitdaab4d1.el7"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el7","package":"cri-o-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.23.0-92.rhaos4.10.gitdaab4d1.el7"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"cri-o","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.23.1-9.rhaos4.10.gitbdffb9a.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"cri-o-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.23.1-9.rhaos4.10.gitbdffb9a.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"cri-o-debugsource","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.23.1-9.rhaos4.10.gitbdffb9a.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el7","package":"openshift","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.10.0-202202250816.p0.ge419edf.assembly.stream.el7"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el7","package":"openshift-clients","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.10.0-202202160023.p0.gf93da17.assembly.stream.el7"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el7","package":"openshift-clients-redistributable","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.10.0-202202160023.p0.gf93da17.assembly.stream.el7"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el7","package":"openshift-hyperkube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.10.0-202202250816.p0.ge419edf.assembly.stream.el7"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"openshift","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.10.0-202202250816.p0.ge419edf.assembly.stream.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"openshift-clients","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.10.0-202202160023.p0.gf93da17.assembly.stream.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"openshift-clients-redistributable","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.10.0-202202160023.p0.gf93da17.assembly.stream.el8"}]}],"bundled":24},{"source":"osv","ecosystem":"Red Hat:openshift:4.10::el8","package":"openshift-hyperkube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.10.0-202202250816.p0.ge419edf.assembly.stream.el8"}]}],"bundled":24}],"products":[{"vendor":"jenkins","product":"jenkins"},{"vendor":"jenkins project","product":"jenkins"}],"references":[{"url":"https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2423","tags":["x_refsource_CONFIRM","x_transferred","Mitigation","Vendor Advisory","advisory","web","article"]},{"url":"http://www.openwall.com/lists/oss-security/2021/11/04/3","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21696","tags":["web","advisory"]},{"url":"https://github.com/jenkinsci/jenkins/commit/93451e20c20cfd84badeb0f37c38d4c0c7a5dad3","tags":["web"]},{"url":"https://github.com/advisories/GHSA-c5r9-rx53-q3gf"},{"url":"https://github.com/jenkinsci/jenkins","tags":["package"]},{"url":"https://access.redhat.com/errata/RHSA-2021:4799","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020322","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020323","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020324","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020327","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020335","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020336","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020338","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020339","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020341","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020342","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020343","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020344","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020345","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020385","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_4799.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21685","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21685","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21685","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21686","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21686","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21686","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21687","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21687","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21687","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21688","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21688","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21688","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21689","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21689","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21689","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21690","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21690","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21690","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21691","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21691","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21691","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21692","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21692","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21692","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21693","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21693","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21693","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21694","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21694","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21694","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21695","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21695","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21695","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21696","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21696","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21697","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21697","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21697","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2428","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21698","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21698","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21698","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2506","tags":["article"]},{"url":"https://access.redhat.com/errata/RHSA-2021:4801","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_4801.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2021:4827","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1920894","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2002671","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2002909","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2003491","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2013496","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2016467","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2026193","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_4827.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2021:4829","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2018478","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_4829.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-3917","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-3917","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3917","tags":["advisory"]},{"url":"https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b76638fbdb0c","tags":["article"]},{"url":"https://access.redhat.com/errata/RHSA-2021:4833","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_4833.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2022:0055","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1129074","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2011949","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2024938","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2030801","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2030806","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2051730","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_0055.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2014-3577","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-3577","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-3577","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-20319","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2011862","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-20319","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20319","tags":["advisory"]},{"url":"https://github.com/coreos/coreos-installer/security/advisories/GHSA-3r3g-g73x-g593","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21684","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21684","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21684","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2499","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-41190","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-41190","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41190","tags":["advisory"]},{"url":"https://github.com/moby/moby/security/advisories/GHSA-xmmx-7jpf-fx42","tags":["article"]},{"url":"https://github.com/opencontainers/distribution-spec/security/advisories/GHSA-mc8v-mgrf-8f4m","tags":["article"]},{"url":"https://github.com/opencontainers/image-spec/security/advisories/GHSA-77vh-xpmg-72qh","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-41772","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020736","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-41772","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41772","tags":["advisory"]},{"url":"https://groups.google.com/g/golang-announce/c/0fM21h43arc","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-44716","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-44716","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44716","tags":["advisory"]},{"url":"https://groups.google.com/g/golang-announce/c/hcmEScgc00k","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-44717","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-44717","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44717","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-0532","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-0532","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-0532","tags":["advisory"]},{"url":"https://github.com/cri-o/cri-o/security/advisories/GHSA-w2j5-3rcx-vx7x","tags":["article"]},{"url":"https://kubernetes.io/docs/tasks/administer-cluster/sysctl-cluster/#enabling-unsafe-sysctls","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-20612","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2044460","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-20612","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-20612","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2022-01-12/#SECURITY-2558","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-20617","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2044502","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-20617","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-20617","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2022-01-12/#SECURITY-1878","tags":["article"]}],"sources":{"cve":[{"id":"CVE-2021-21696","description":"Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.","status":"published","published":"2021-11-04T16:30:41Z","modified":"2024-08-03T18:23:29.397Z","updated_at":"2026-11-02T14:32:59.802172Z"}],"euvd":[{"id":"EUVD-2022-3513","description":"Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.","status":"published","published":"2021-11-04T16:30:41Z","modified":"2024-08-03T18:23:29Z","updated_at":"2026-11-03T03:25:04.672228Z"}],"ghsa":[{"id":"GHSA-c5r9-rx53-q3gf","title":"Agent-to-controller access control allowed writing to sensitive directory used by Jenkins Pipeline: Shared Groovy Libraries Plugin","description":"Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the `libs/` directory inside build directories when using the `FilePath` APIs. This directory is used by the Pipeline: Shared Groovy Libraries Plugin to store copies of shared libraries.\n\nThis allows attackers in control of agent processes to replace the code of a trusted library with a modified variant, resulting in unsandboxed code execution in the Jenkins controller process.\n\nJenkins 2.319, LTS 2.303.3 prohibits agent read/write access to the `libs/` directory inside build directories.\n\nIf you are unable to immediately upgrade to Jenkins 2.319, LTS 2.303.3, you can install the [Remoting Security Workaround Plugin](https://www.jenkins.io/redirect/remoting-security-workaround/). It will prevent all agent-to-controller file access using FilePath APIs. Because it is more restrictive than Jenkins 2.319, LTS 2.303.3, more plugins are incompatible with it. Make sure to read the plugin documentation before installing it.\n\nIt is not easily possible to [customize the file access rules](https://www.jenkins.io/doc/book/security/controller-isolation/agent-to-controller/#file-access-rules) to prohibit access to the `libs/` directory specifically, as built-in rules (granting access to `\u003cBUILDDIR\u003e` contents) would take precedence over a custom rule prohibiting access.","status":"published","published":"2022-05-24T19:19:43Z","modified":"2023-12-22T13:47:07Z","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-693"],"updated_at":"2026-11-02T14:37:28.04129Z"}],"nvd":[{"id":"CVE-2021-21696","description":"Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.","status":"published","published":"2021-11-04T17:15:08.873Z","modified":"2026-06-17T03:36:00.817Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:07:00.549994Z"}],"osv":[{"id":"CVE-2021-21696","description":"Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.","status":"published","published":"2021-11-04T17:15:08.873Z","modified":"2026-10-24T10:30:41.415373159Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:18.367807Z"},{"id":"GHSA-c5r9-rx53-q3gf","title":"Agent-to-controller access control allowed writing to sensitive directory used by Jenkins Pipeline: Shared Groovy Libraries Plugin","description":"Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the `libs/` directory inside build directories when using the `FilePath` APIs. This directory is used by the Pipeline: Shared Groovy Libraries Plugin to store copies of shared libraries.\n\nThis allows attackers in control of agent processes to replace the code of a trusted library with a modified variant, resulting in unsandboxed code execution in the Jenkins controller process.\n\nJenkins 2.319, LTS 2.303.3 prohibits agent read/write access to the `libs/` directory inside build directories.\n\nIf you are unable to immediately upgrade to Jenkins 2.319, LTS 2.303.3, you can install the [Remoting Security Workaround Plugin](https://www.jenkins.io/redirect/remoting-security-workaround/). It will prevent all agent-to-controller file access using FilePath APIs. Because it is more restrictive than Jenkins 2.319, LTS 2.303.3, more plugins are incompatible with it. Make sure to read the plugin documentation before installing it.\n\nIt is not easily possible to [customize the file access rules](https://www.jenkins.io/doc/book/security/controller-isolation/agent-to-controller/#file-access-rules) to prohibit access to the `libs/` directory specifically, as built-in rules (granting access to `\u003cBUILDDIR\u003e` contents) would take precedence over a custom rule prohibiting access.","status":"published","published":"2022-05-24T19:19:43Z","modified":"2024-02-16T08:22:46.668418Z","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-693"],"updated_at":"2026-11-02T15:46:44.571161Z"},{"id":"RHSA-2021:4799","title":"Red Hat Security Advisory: OpenShift Container Platform 4.6.51 packages and security update","status":"published","published":"2024-09-16T06:53:54Z","modified":"2026-08-12T10:01:42Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.077222Z"},{"id":"RHSA-2021:4801","title":"Red Hat Security Advisory: OpenShift Container Platform 4.7.38 security update","status":"published","published":"2024-09-16T06:53:48Z","modified":"2026-08-12T10:01:42Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.077222Z"},{"id":"RHSA-2021:4827","title":"Red Hat Security Advisory: OpenShift Container Platform 3.11.569 security update","status":"published","published":"2024-09-16T06:54:02Z","modified":"2026-08-12T10:01:43Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.077222Z"},{"id":"RHSA-2021:4829","title":"Red Hat Security Advisory: OpenShift Container Platform 4.8.22 security update","status":"published","published":"2024-09-16T06:53:41Z","modified":"2026-08-12T10:01:43Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.077222Z"},{"id":"RHSA-2021:4833","title":"Red Hat Security Advisory: OpenShift Container Platform 4.9.9 security update","status":"published","published":"2024-09-16T06:53:34Z","modified":"2026-08-12T10:01:44Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.077222Z"},{"id":"RHSA-2022:0055","title":"Red Hat Security Advisory: OpenShift Container Platform 4.10.3 bug fix and security update","status":"published","published":"2024-09-30T14:19:01Z","modified":"2026-08-20T10:02:39Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.077222Z"},{"id":"BIT-jenkins-2021-21696","description":"Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.","status":"published","published":"2024-03-06T10:59:13.605Z","modified":"2026-09-08T08:47:57.696237208Z","updated_at":"2026-11-02T15:28:31.42203Z"}]}}