CVE-2023-3424 json
Inefficient Regular Expression Complexity in GitLab
published 3y ago modified 2mo ago also BIT-gitlab-2023-3424 , EUVD-2023-44090
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.
Patch / fix
- bitnami gitlab 15.11.10, 16.0.6, 16.1.1
- GitLab GitLab 15.11.10, 16.0.6, 16.1.1
Is CVE-2023-3424 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
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2y ago
Exploit prediction
0.91% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-14).
Exploits and checks
- hackerone.com https://hackerone.com/reports/1960970 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=10.3.0, <15.11.10 >=16.0.0, <16.0.6 >=16.1.0, <16.1.1 |
15.11.10 16.0.6 16.1.1 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-1333 Inefficient Regular Expression Complexity
- Technology feeds
References
-
hackerone.com
/reports/1960970
technical-description, exploit, third-party-advisory, advisory
-
gitlab.com
/gitlab-org/gitlab/-/issues/409802
issue-tracking, broken-link, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-3424
web
Sources
- CVE List CVE-2023-3424
- NVD CVE-2023-3424
- OSV BIT-gitlab-2023-3424
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.