{"cve":"CVE-2021-39899","nvd":{"published":"2021-10-04T17:15:08.357","modified":"2026-06-17T04:04:23.230","status":"Modified","description":"In all versions of GitLab CE/EE, an attacker with physical access to a user’s machine may brute force the user’s password via the change password function. There is a rate limit in place, but the attack may still be conducted by stealing the session id from the physical compromise of the account and splitting the attack over several IP addresses and passing in the compromised session value from these various locations.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":4.2},"cwes":["CWE-640"],"references":["https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39899.json","https://gitlab.com/gitlab-org/gitlab/-/issues/339154","https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39899.json","https://gitlab.com/gitlab-org/gitlab/-/issues/339154"],"products":["gitlab:gitlab"],"source":"nvd","synced_at":"2026-10-19T21:23:41.316049955+00:00"},"epss":{"cve":"CVE-2021-39899","score":0.00257,"percentile":0.17452,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}