CVE-2023-3979 json
Incorrect Authorization in GitLab
published 3y ago modified 3mo ago also BIT-gitlab-2023-3979 , EUVD-2023-44603
- cvss
- 3.1
- 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 41%
- public exploits
- 0
- none known
Summary
An issue has been discovered in GitLab affecting all versions starting from 10.6 before 16.2.8, all versions starting from 16.3 before 16.3.5, all versions starting from 16.4 before 16.4.1. It was possible that upstream members to collaborate with you on your branch get permission to write to the merge request’s source branch.
Patch / fix
- bitnami gitlab 16.2.8, 16.3.5, 16.4.1
- GitLab GitLab 16.2.8, 16.3.5, 16.4.1
Is CVE-2023-3979 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
- 2y ago
Exploit prediction
0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-14).
Exploits and checks
- hackerone.com https://hackerone.com/reports/2082560 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.1 | CVSS:3.1/AV:N/AC:H/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 |
| 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 | >=10.6.0, <16.2.8 >=16.3.0, <16.3.5 >=16.4.0, <16.4.1 |
16.2.8 16.3.5 16.4.1 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
- Technology feeds
References
-
hackerone.com
/reports/2082560
technical-description, exploit, permissions-required, broken-link, web
-
gitlab.com
/gitlab-org/gitlab/-/issues/419972
issue-tracking, permissions-required, broken-link, web
-
nvd.nist.gov
/vuln/detail/CVE-2023-3979
web
Sources
- CVE List CVE-2023-3979
- NVD CVE-2023-3979
- OSV BIT-gitlab-2023-3979
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.