{"id":"CVE-2021-39889","aliases":["BIT-gitlab-2021-39889","EUVD-2021-26245","GHSA-7w9g-7w46-w7h4","UBUNTU-CVE-2021-39889"],"status":"published","title":"In all versions of GitLab EE since version 14.1, due to an insecure direct object reference...","description":"In all versions of GitLab EE since version 14.1, due to an insecure direct object reference vulnerability, an endpoint may reveal the protected branch name to a malicious user who makes a crafted API call with the ID of the protected branch.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00833,"percentile":0.57948,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-639","CWE-732"],"published":"2021-10-05T13:43:07Z","modified":"2026-10-30T10:30:52Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["14.1.7","14.2.5","14.3.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"14.1.0"},{"fixed":"14.1.7"},{"introduced":"14.2.0"},{"fixed":"14.2.5"},{"introduced":"14.3.0"},{"fixed":"14.3.1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"gitlab","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.4.3+dfsg-9","8.4.3+dfsg-12","8.5.8+dfsg-5"]}],"products":[{"vendor":"gitlab","product":"gitlab"}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/338062","tags":["x_refsource_MISC","x_transferred","Broken Link","web","report"]},{"url":"https://hackerone.com/reports/1294017","tags":["x_refsource_MISC","x_transferred","Permissions Required","Third Party Advisory","advisory","report"]},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39889.json","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39889","tags":["web"]},{"url":"https://github.com/advisories/GHSA-7w9g-7w46-w7h4"},{"url":"https://ubuntu.com/security/CVE-2021-39889","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-39889","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-39889","description":"In all versions of GitLab EE since version 14.1, due to an insecure direct object reference vulnerability, an endpoint may reveal the protected branch name to a malicious user who makes a crafted API call with the ID of the protected 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since version 14.1, due to an insecure direct object reference vulnerability, an endpoint may reveal the protected branch name to a malicious user who makes a crafted API call with the ID of the protected branch.","status":"published","published":"2022-05-24T19:16:33Z","modified":"2023-01-30T05:02:25Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-639","CWE-732"],"updated_at":"2026-11-02T14:46:38.066268Z"}],"nvd":[{"id":"CVE-2021-39889","description":"In all versions of GitLab EE since version 14.1, due to an insecure direct object reference vulnerability, an endpoint may reveal the protected branch name to a malicious user who makes a crafted API call with the ID of the protected 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due to an insecure direct object reference vulnerability, an endpoint may reveal the protected branch name to a malicious user who makes a crafted API call with the ID of the protected branch.","status":"published","published":"2024-03-06T11:18:22.704Z","modified":"2026-09-08T08:47:11.559434473Z","updated_at":"2026-11-02T15:28:29.999658Z"}]}}