What is CVE-2021-39891?

CVE-2021-39891 is a medium-severity vulnerability in Gitlab, classified under Improper Removal of Sensitive Information Before Storage or Transfer. CVSS score: 5.9/10. Published 2021-10-05.

How severe is CVE-2021-39891?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Gitlab

CVE-2021-39891

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.

EPSS: 0.010 (58.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N.

Affected products

Gitlab — versions >=8.0, <14.1.7, >=14.2, <14.2.5, >=14.3, <14.3.1

Weakness classification (CWE)

CWE-212 — Improper Removal of Sensitive Information Before Storage or Transfer

References

cve@gitlab.com (x_refsource_MISC, Broken Link)
cve@gitlab.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39891?: CVE-2021-39891 is a medium-severity vulnerability in Gitlab, classified under Improper Removal of Sensitive Information Before Storage or Transfer. CVSS score: 5.9/10. Published 2021-10-05.
How severe is CVE-2021-39891?: Medium severity. CVSS v3 base score is 5.9 out of 10.