CVE-2021-39891

4.9 mediumEPSS 1.0%

Medium (4.9) in gitlab gitlab. EPSS 1.0% chance of exploitation in the next 30 days.

In all versions of GitLab CE/EE since version 8.0, access tokens created as part of admin's impersonation of a user are not cleared at the end of impersonation which may lead to unnecessary sensitive info disclosure.

Severity

CVSS 3.1

4.9 medium

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 62% of CVEs (scores of 2026-10-31)
CWE: CWE-212
Published: 2021-10-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gitlab:gitlab

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39891.json
https://gitlab.com/gitlab-org/gitlab/-/issues/335137
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39891.json
https://gitlab.com/gitlab-org/gitlab/-/issues/335137

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