CVE-2023-3964 json
Incorrect Authorization in GitLab
published 2y ago modified 2mo ago also BIT-gitlab-2023-3964 , EUVD-2023-44589
- cvss
- 4.3
- 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 42%
- public exploits
- 0
- none known
Summary
An issue has been discovered in GitLab affecting all versions starting from 13.2 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for users to access composer packages on public projects that have package registry disabled in the project settings.
Patch / fix
- bitnami gitlab 16.4.3, 16.5.3, 16.6.1
- GitLab GitLab 16.4.3, 16.5.3, 16.6.1
Is CVE-2023-3964 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-14).
Exploits and checks
- hackerone.com https://hackerone.com/reports/2037316 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:L/I:N/A:N |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=13.2.0, <16.4.3 >=16.5.0, <16.5.3 >=16.6.0, <16.6.1 |
16.4.3 16.5.3 16.6.1 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
- Technology feeds
References
-
hackerone.com
/reports/2037316
technical-description, exploit, permissions-required, third-party-advisory, advisory
-
gitlab.com
/gitlab-org/gitlab/-/issues/419857
issue-tracking, permissions-required, broken-link, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-3964
web
Sources
- CVE List CVE-2023-3964
- NVD CVE-2023-3964
- OSV BIT-gitlab-2023-3964
Fencer Intel 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.