CVE-2021-39945 json
Improper access control in the GitLab CE/EE API affecting all versions starting from 9.4 before 14.3.6, all versions starting from 14.4 bef…
published 2021-12-13 4 y ago modified 2026-09-08 2 mo ago also BIT-gitlab-2021-39945 , EUVD-2021-26301
- cvss
- 2.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
Improper access control in the GitLab CE/EE API affecting all versions starting from 9.4 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 author of a Merge Request to approve the Merge Request even after having their project access revoked
Patch / fix
- bitnami gitlab 14.3.6, 14.4.4, 14.5.2
- gitlab gitlab 14.3.6, 14.4.4, 14.5.2
- gitlab gitlab_enterprise 14.3.6, 14.4.4, 14.5.2
- gitlab Arch Linux 14.5.2-1
arch linux advisories AVG-2603
Exploit prediction
0.94% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N |
| NVD | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
| OSV | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=9.4.0, <14.3.6 >=14.4.0, <14.4.4 >=14.5.0, <14.5.2 |
14.3.6 14.4.4 14.5.2 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
- Technology feeds
References
-
gitlab.com
/gitlab-org/gitlab/-/issues/331675
broken-link, web
-
hackerone.com
/reports/1198317
permissions-required, third-party-advisory, advisory
-
gitlab.com
/gitlab-org/cves/-/blob/master/2021/CVE-2021-39945.json
third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-39945
web
Sources
- CVE List CVE-2021-39945
- NVD CVE-2021-39945
- OSV BIT-gitlab-2021-39945
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Enhance with deb and rpm package type records.