What is CVE-2021-39873?

CVE-2021-39873 is a medium-severity vulnerability in Gitlab. CVSS score: 4.3/10. Published 2021-10-04.

How severe is CVE-2021-39873?

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

Vulnerability in Gitlab

CVE-2021-39873

In all versions of GitLab CE/EE, there exists a content spoofing vulnerability which may be leveraged by attackers to trick users into visiting a malicious website by spoofing the content in an error response.

EPSS: 0.009 (56.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Gitlab — versions 4.3.0, >=14.3, <14.3.1, >=14.2, <14.2.5

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-2021-39873?: CVE-2021-39873 is a medium-severity vulnerability in Gitlab. CVSS score: 4.3/10. Published 2021-10-04.
How severe is CVE-2021-39873?: Medium severity. CVSS v3 base score is 4.3 out of 10.