{"id":"CVE-2021-31822","aliases":["EUVD-2021-18697","GHSA-gv66-6m64-mx48"],"status":"published","title":"When Octopus Tentacle is installed on a Linux operating system, the systemd service file...","description":"When Octopus Tentacle is installed on a Linux operating system, the systemd service file permissions are misconfigured. This could lead to a local unprivileged user modifying the contents of the systemd service file to gain privileged access.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/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":0.00215,"percentile":0.11973,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-276"],"published":"2021-11-24T00:35:09Z","modified":"2026-06-17T03:52:18Z","products":[{"vendor":"octopus","product":"tentacle"},{"vendor":"octopus deploy","product":"octopus tentacle"}],"references":[{"url":"https://advisories.octopus.com/adv/2021-11---Local-privilege-escalation-in-Octopus-Tentacle-%28CVE-2021-31822%29.2283732993.html","tags":["x_refsource_MISC","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31822"},{"url":"https://advisories.octopus.com/adv/2021-11---Local-privilege-escalation-in-Octopus-Tentacle-(CVE-2021-31822).2283732993.html"},{"url":"https://github.com/advisories/GHSA-gv66-6m64-mx48"}],"sources":{"cve":[{"id":"CVE-2021-31822","description":"When Octopus Tentacle is installed on a Linux operating system, the systemd service file permissions are misconfigured. This could lead to a local unprivileged user modifying the contents of the systemd service file to gain privileged access.","status":"published","published":"2021-11-24T00:35:09Z","modified":"2024-08-03T23:10:30.119Z","updated_at":"2026-11-02T14:33:05.665371Z"}],"euvd":[{"id":"EUVD-2021-18697","description":"When Octopus Tentacle is installed on a Linux operating system, the systemd service file permissions are misconfigured. This could lead to a local unprivileged user modifying the contents of the systemd service file to gain privileged access.","status":"published","published":"2021-11-24T00:35:09Z","modified":"2024-08-03T23:10:30Z","updated_at":"2026-11-03T03:24:37.97373Z"}],"ghsa":[{"id":"GHSA-gv66-6m64-mx48","title":"When Octopus Tentacle is installed on a Linux operating system, the systemd service file...","description":"When Octopus Tentacle is installed on a Linux operating system, the systemd service file permissions are misconfigured. This could lead to a local unprivileged user modifying the contents of the systemd service file to gain privileged access.","status":"published","published":"2022-05-24T19:21:18Z","modified":"2023-01-30T05:03:51Z","cwes":["CWE-276"],"updated_at":"2026-11-02T14:46:55.198962Z"}],"nvd":[{"id":"CVE-2021-31822","description":"When Octopus Tentacle is installed on a Linux operating system, the systemd service file permissions are misconfigured. This could lead to a local unprivileged user modifying the contents of the systemd service file to gain privileged access.","status":"published","published":"2021-11-24T16:15:13.54Z","modified":"2026-06-17T03:52:18.047Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:07:01.428028Z"}],"osv":[{"id":"CVE-2021-31822","description":"When Octopus Tentacle is installed on a Linux operating system, the systemd service file permissions are misconfigured. This could lead to a local unprivileged user modifying the contents of the systemd service file to gain privileged access.","status":"published","published":"2021-11-24T16:15:13.54Z","modified":"2026-04-10T04:32:34.881617Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:19.483607Z"}]}}