{"id":"CVE-2021-37218","aliases":["ALPINE-CVE-2021-37218","EUVD-2021-2035","GHSA-c8x3-rg72-fwwg","GO-2022-0591","UBUNTU-CVE-2021-37218"],"status":"published","title":"Privilege escalation in Hashicorp Nomad","description":"HashiCorp Nomad and Nomad Enterprise Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.0.10 and 1.1.4.","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":"2026-11-11","score":0.0067,"percentile":0.52449,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2021-09-07T11:40:36Z","modified":"2026-11-03T06:32:40Z","fixes":[{"ecosystem":"Go","package":"github.com/hashicorp/nomad","fixed_in":["1.0.10","1.1.4"],"sources":["ghsa","osv"]},{"ecosystem":"Alpine:v3.15","package":"nomad","fixed_in":["1.1.12-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"nomad","fixed_in":["1.2.6-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"nomad","fixed_in":["1.2.6-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"nomad","fixed_in":["1.2.6-r0"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/hashicorp/nomad","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.10"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/hashicorp/nomad","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.0"},{"fixed":"1.1.4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"nomad","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.1"},{"fixed":"1.1.12-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"nomad","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.1"},{"fixed":"1.2.6-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"nomad","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.1"},{"fixed":"1.2.6-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"nomad","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.1"},{"fixed":"1.2.6-r0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/hashicorp/nomad","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.0.10"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/hashicorp/nomad","ranges":[{"type":"SEMVER","events":[{"introduced":"1.1.0"},{"fixed":"1.1.4"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/hashicorp/nomad","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.0.10"},{"introduced":"1.1.0"},{"fixed":"1.1.4"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"nomad","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.0+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"nomad","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.7+dfsg1-1ubuntu1"]}],"products":[{"vendor":"hashicorp","product":"nomad"}],"references":[{"url":"https://www.hashicorp.com/blog/category/nomad","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory","advisory","web","report"]},{"url":"https://discuss.hashicorp.com/t/hcsec-2021-21-nomad-raft-rpc-privilege-escalation/29023","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-37218","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c8x3-rg72-fwwg","tags":["advisory"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2021-37218","tags":["advisory"]},{"url":"https://github.com/hashicorp/nomad","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2021-37218","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-37218","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-37218","description":"HashiCorp Nomad and Nomad Enterprise Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.0.10 and 1.1.4.","status":"published","published":"2021-09-07T11:40:36Z","modified":"2024-08-04T01:16:03.98Z","updated_at":"2026-11-02T14:32:58.359368Z"}],"euvd":[{"id":"EUVD-2021-2035","description":"HashiCorp Nomad and Nomad Enterprise Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.0.10 and 1.1.4.","status":"published","published":"2021-09-07T11:40:36Z","modified":"2024-08-04T01:16:03Z","updated_at":"2026-11-03T03:24:28.314716Z"}],"ghsa":[{"id":"GHSA-c8x3-rg72-fwwg","title":"Privilege escalation in Hashicorp Nomad","description":"HashiCorp Nomad and Nomad Enterprise Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.0.10 and 1.1.4.","status":"published","published":"2021-09-08T20:14:38Z","modified":"2023-02-01T05:06:09Z","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-295"],"updated_at":"2026-11-02T14:36:37.441118Z"}],"nvd":[{"id":"CVE-2021-37218","description":"HashiCorp Nomad and Nomad Enterprise Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.0.10 and 1.1.4.","status":"published","published":"2021-09-07T12:15:07.68Z","modified":"2026-06-17T04:00:17.837Z","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-295"],"updated_at":"2026-11-02T14:06:58.05696Z"}],"osv":[{"id":"ALPINE-CVE-2021-37218","description":"HashiCorp Nomad and Nomad Enterprise Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.0.10 and 1.1.4.","status":"published","published":"2021-09-07T12:15:07.68Z","modified":"2026-11-03T06:32:40.909589929Z","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":"2026-11-03T07:17:02.90744Z"},{"id":"CVE-2021-37218","description":"HashiCorp Nomad and Nomad Enterprise Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.0.10 and 1.1.4.","status":"published","published":"2021-09-07T12:15:07.68Z","modified":"2026-10-24T10:30:47.701994345Z","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":"2026-11-02T15:44:20.434873Z"},{"id":"GHSA-c8x3-rg72-fwwg","title":"Privilege escalation in Hashicorp Nomad","description":"HashiCorp Nomad and Nomad Enterprise Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.0.10 and 1.1.4.","status":"published","published":"2021-09-08T20:14:38Z","modified":"2024-08-21T15:26:39.994545Z","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-295"],"updated_at":"2026-11-02T15:46:44.927642Z"},{"id":"UBUNTU-CVE-2021-37218","description":"HashiCorp Nomad and Nomad Enterprise Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.0.10 and 1.1.4.","status":"published","published":"2021-09-07T12:15:00Z","modified":"2025-10-24T04:50:27Z","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":"2026-11-02T15:54:27.870979Z"},{"id":"GO-2022-0591","title":"Privilege escalation in Hashicorp Nomad in github.com/hashicorp/nomad","description":"Privilege escalation in Hashicorp Nomad in github.com/hashicorp/nomad","status":"published","published":"2024-08-21T15:11:38Z","modified":"2026-03-03T04:50:34.054814Z","updated_at":"2026-11-02T15:47:00.918515Z"}]}}