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CVE-2021-39896

LOWCVSS 3.8/10EPSS 0.60%

Last modified

CVE-2021-39896 is a low-severity vulnerability rated 3.8/10 on the CVSS scale. 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.. EPSS estimates a 0.60% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
3.8/10

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

EPSS Probability
0.60%

44.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
GitlabGitlab>= 8.0.0, < 14.1.7
GitlabGitlab>= 14.2, < 14.2.5
GitlabGitlab>= 14.3, < 14.3.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-39896?
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.
How severe is CVE-2021-39896?
CVE-2021-39896 has a CVSS score of 3.8/10 (LOW severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.
How do I fix CVE-2021-39896?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-39896?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST