{"id":"CVE-2021-3934","aliases":["EUVD-2021-27148","GHSA-gv4m-8hpx-hfqf"],"status":"published","title":"OS Command Injection in ohmyzsh/ohmyzsh","description":"ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00618,"percentile":0.49938,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2021-11-12T11:45:10Z","modified":"2026-10-20T10:54:54Z","products":[{"vendor":"ohmyzsh","product":"ohmyzsh/ohmyzsh"},{"vendor":"planetargon","product":"oh_my_zsh"}],"references":[{"url":"https://huntr.dev/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce","tags":["x_refsource_CONFIRM","x_transferred","Permissions Required","report"]},{"url":"https://github.com/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3934"},{"url":"https://github.com/advisories/GHSA-gv4m-8hpx-hfqf"}],"sources":{"cve":[{"id":"CVE-2021-3934","title":"OS Command Injection in ohmyzsh/ohmyzsh","description":"ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command","status":"published","published":"2021-11-12T11:45:10Z","modified":"2024-08-03T17:09:09.615Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:33:03.671751Z"}],"euvd":[{"id":"EUVD-2021-27148","description":"ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command","status":"published","published":"2021-11-12T11:45:10Z","modified":"2024-08-03T17:09:09Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:25:11.376657Z"}],"ghsa":[{"id":"GHSA-gv4m-8hpx-hfqf","title":"ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command","description":"ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command","status":"published","published":"2022-05-24T19:20:32Z","modified":"2023-01-30T05:03:54Z","cwes":["CWE-78"],"updated_at":"2026-11-02T14:46:56.128795Z"}],"nvd":[{"id":"CVE-2021-3934","description":"ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command","status":"published","published":"2021-11-12T12:15:07.46Z","modified":"2026-06-17T04:06:00.953Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":5.1,"vector":"AV:N/AC:H/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:07:00.984108Z"}],"osv":[{"id":"CVE-2021-3934","description":"ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command","status":"published","published":"2021-11-12T12:15:07.46Z","modified":"2026-10-20T10:54:54.271468858Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:20.843843Z"}]}}