CVE-2021-39896

Description

In all versions of GitLab CE/EE since version 8.0, when an admin uses the impersonate feature twice and stops impersonating, the admin may be logged in as the second user they impersonated, which may lead to repudiation issues.

3.8

CVSS

Severity: Low

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.20%

Vendor Advisory gitlab.com

Affected: GitLab GitLab

References

Link	Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/339362	broken link
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39896.json	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-39896?: CVE-2021-39896 has been scored as a low severity vulnerability.
How to fix CVE-2021-39896?: To fix CVE-2021-39896, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-39896 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-39896 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-39896?: CVE-2021-39896 affects GitLab GitLab.

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