CVE-2021-39904 json
An Improper Access Control vulnerability in the GraphQL API in all versions of GitLab CE/EE starting from 13.1 before 14.2.6, all versions…
published 2021-11-04 5 y ago modified 2026-09-08 2 mo ago also BIT-gitlab-2021-39904 , EUVD-2021-26260
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
An Improper Access Control vulnerability in the GraphQL API in all versions of GitLab CE/EE starting from 13.1 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 allows a Merge Request creator to resolve discussions and apply suggestions after a project owner has locked the Merge Request
Patch / fix
- bitnami gitlab 14.2.6, 14.3.4, 14.4.1
- gitlab gitlab 14.2.6, 14.3.4, 14.4.1
- gitlab gitlab_enterprise 14.2.6, 14.3.4, 14.4.1
- gitlab Arch Linux 14.5.0-1
arch linux advisories AVG-2503
Exploit prediction
0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- gitlab.com https://gitlab.com/gitlab-org/gitlab/-/issues/295298 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/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 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=13.1.0, <14.2.6 >=14.3.0, <14.3.4 >=14.4.0, <14.4.1 |
14.2.6 14.3.4 14.4.1 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
- Technology feeds
References
-
gitlab.com
/gitlab-org/gitlab/-/issues/295298
exploit, issue-tracking, vendor-advisory, advisory
-
gitlab.com
/gitlab-org/cves/-/blob/master/2021/CVE-2021-39904.json
vendor-advisory, advisory
-
hackerone.com
/reports/1063420
permissions-required, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-39904
web
Sources
- CVE List CVE-2021-39904
- NVD CVE-2021-39904
- OSV BIT-gitlab-2021-39904
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.