CVE-2023-5226 json
Improper Control of Generation of Code ('Code Injection') in GitLab
published 2y ago modified 2mo ago also BIT-gitlab-2023-5226 , EUVD-2023-57555
- cvss
- 4.8
- 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 46%
- public exploits
- 0
- none known
Summary
An issue has been discovered in GitLab affecting all versions before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. Under certain circumstances, a malicious actor bypass prohibited branch checks using a specially crafted branch name to manipulate repository content in the UI.
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-2023-5226 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 FencerExploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-14).
Exploits and checks
- hackerone.com https://hackerone.com/reports/2173053 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | <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-94 Improper Control of Generation of Code
- Technology feeds
References
-
hackerone.com
/reports/2173053
technical-description, exploit, permissions-required, broken-link, third-party-advisory, advisory
-
gitlab.com
/gitlab-org/gitlab/-/issues/426400
issue-tracking, broken-link, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-5226
web
Sources
- CVE List CVE-2023-5226
- NVD CVE-2023-5226
- OSV BIT-gitlab-2023-5226
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.