CVE-2021-39915

Name: CVE-2021-39915
Creator: NVD / NIST
Published: 2021-12-13T16:15:08.8+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.13%

Last modified Jun 17, 2026

CVE-2021-39915 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Improper access control in the GraphQL API in GitLab CE/EE affecting all versions starting from 13.0 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an attacker to see the names of project access tokens on arbitrary projects. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

Improper access control in the GraphQL API in GitLab CE/EE affecting all versions starting from 13.0 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an attacker to see the names of project access tokens on arbitrary projects

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

1.13%

62.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-668

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 13.0.0, < 14.3.6
Gitlab	Gitlab	>= 14.4.0, < 14.4.4
Gitlab	Gitlab	>= 14.5.0, < 14.5.2

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39915.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/340803Broken Link
https://hackerone.com/reports/1336059Permissions Required, Third Party Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39915.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/340803Broken Link
https://hackerone.com/reports/1336059Permissions Required, Third Party Advisory

Timeline

Published: Dec 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39915?

How severe is CVE-2021-39915?

CVE-2021-39915 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39915?

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-2021-39915?

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

Scan your code now

Source: NVD / NIST