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CVE-2021-39890

3.1 · LOW

It was possible to bypass 2FA for LDAP users and access some specific pages with Basic Authentication in GitLab 14.1.1 and above.

Published Dec 6, 2021CWE-287EPSS 1.10%

Overview

CVE-2021-39890 is a low-severity vulnerability. It was published on December 6, 2021 and has a CVSS 3.1 base score of 3.1 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.1, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

It was possible to bypass 2FA for LDAP users and access some specific pages with Basic Authentication in GitLab 14.1.1 and above.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39890.jsonRefgitlab.com/gitlab-org/gitlab/-/issues/341522Refgitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39890.jsonRefgitlab.com/gitlab-org/gitlab/-/issues/341522

How CyberStrike helps

Frequently asked questions

What is CVE-2021-39890?

CVE-2021-39890 is a low-severity vulnerability. It was published on December 6, 2021 and has a CVSS 3.1 base score of 3.1 (LOW).

How severe is CVE-2021-39890?

This vulnerability has a CVSS 3.1 base score of 3.1, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-39890?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-39890?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-39890 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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