What is CVE-2021-39871?

CVE-2021-39871 is a medium-severity vulnerability in Gitlab. CVSS score: 4.3/10. Published 2021-10-04.

How severe is CVE-2021-39871?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Gitlab

CVE-2021-39871

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.

EPSS: 0.009 (57.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Gitlab — versions 4.3.0, >=14.3, <14.3.1, >=13.0, <14.1.7

References

cve@gitlab.com (x_refsource_MISC, Broken Link)
cve@gitlab.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
cve@gitlab.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39871?: CVE-2021-39871 is a medium-severity vulnerability in Gitlab. CVSS score: 4.3/10. Published 2021-10-04.
How severe is CVE-2021-39871?: Medium severity. CVSS v3 base score is 4.3 out of 10.