CVE-2021-39871

Description

In all versions of GitLab CE/EE since version 13.0, an instance that has the setting to disable Bitbucket Server import enabled is bypassed by an attacker making a crafted API call.

4.3

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.12%

Vendor Advisory gitlab.com

Affected: GitLab GitLab

References

Link	Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/340782	broken link
https://hackerone.com/reports/630263	third party advisory permissions required
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39871.json	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-39871?: CVE-2021-39871 has been scored as a medium severity vulnerability.
How to fix CVE-2021-39871?: To fix CVE-2021-39871, 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-2021-39871 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-39871 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-2021-39871?: CVE-2021-39871 affects GitLab GitLab.

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