CVE-2023-6477 json
Incorrect Privilege Assignment in GitLab
published 2024-02-21 2 y ago modified 2026-06-17 4 mo ago also BIT-gitlab-2023-6477 , EUVD-2023-58710
- cvss
- 6.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
An issue has been discovered in GitLab EE affecting all versions starting from 16.5 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. When a user is assigned a custom role with admin_group_member permission, they may be able to make a group, other members or themselves Owners of that group, which may lead to privilege escalation.
Patch / fix
- bitnami gitlab 16.7.6, 16.8.3, 16.9.1
- GitLab GitLab 16.7.6, 16.8.3, 16.9.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- hackerone.com https://hackerone.com/reports/2270898 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L |
| NVD | 3.1 | 6.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L |
| OSV | 3.1 | 6.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=16.5.0, <16.7.6 >=16.8.0, <16.8.3 >=16.9.0, <16.9.1 |
16.7.6 16.8.3 16.9.1 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-266 Incorrect Privilege Assignment
- Technology feeds
References
-
hackerone.com
/reports/2270898
technical-description, exploit, permissions-required, web
-
gitlab.com
/gitlab-org/gitlab/-/issues/433463
issue-tracking, permissions-required, web
-
nvd.nist.gov
/vuln/detail/CVE-2023-6477
web
Sources
- CVE List CVE-2023-6477
- NVD CVE-2023-6477
- OSV BIT-gitlab-2023-6477
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.