CVE-2021-39915

Improper access control in the GraphQL API in GitLab CE/EE affecting all versions starting from...

5.3 MediumFix available

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

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

1.17%Up 0.3 points since Dec 13, 2021

What each source reports

CVE List Score used 5.3

Record: CVE-2021-39915
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

EUVDEUVD-2021-26271 5.3

Record: EUVD-2021-26271
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-v4qw-4358-7wh4 No score

Improper access control in the GraphQL API in GitLab CE/EE affecting all versions starting from...

Record: GHSA-v4qw-4358-7wh4
Weakness: CWE-668
Updated: 2026-11-02

NVD 5.3

Record: CVE-2021-39915
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-668
Updated: 2026-11-02

OSV 5.3

Record: CVE-2021-39915
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2021-39915 5.3

Record: UBUNTU-CVE-2021-39915
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVBIT-gitlab-2021-39915 No score

Record: BIT-gitlab-2021-39915
Updated: 2026-11-02

Affected products

gitlab

Affected packages

Affected packages
Package	Affected	Fixed
`gitlab` Bitnami	13.0.0 up to 14.3.6, 14.4.0 up to 14.4.4, 14.5.0 up to 14.5.2	14.3.614.4.414.5.2
`gitlab` Ubuntu:16.04:LTS	All versions, plus listed versions 8.4.3+dfsg-98.4.3+dfsg-128.5.8+dfsg-5	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-39915 is a medium vulnerability (CVSS 5.3) in Gitlab, published December 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.17%, the 67th percentile. Fixed in gitlab 14.3.6.