CVE-2026-2900 json
Missing Authorization in GitLab
published 5mo ago modified 2mo ago also BIT-gitlab-2026-2900 , EUVD-2026-30223
- cvss
- 2.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 19%
- public exploits
- 0
- none known
Summary
GitLab has remediated an issue in GitLab EE affecting all versions from 16.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that when instance-level approval rule editing prevention was enabled, could have allowed an authenticated user with Maintainer permissions to modify or delete project approval rules due to missing authorization checks.
Patch / fix
- bitnami gitlab 18.9.7, 18.10.6, 18.11.3
- GitLab GitLab 18.9.7, 18.10.6, 18.11.3
Is CVE-2026-2900 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
- no
- Technical impact
- partial
- Assessed
- 5mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- hackerone.com https://hackerone.com/reports/3561092 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N |
| OSV | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=16.10.0, <18.9.7 >=18.10.0, <18.10.6 >=18.11.0, <18.11.3 |
18.9.7 18.10.6 18.11.3 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
-
hackerone.com
/reports/3561092
technical-description, exploit, permissions-required, web
-
gitlab.com
/gitlab-org/gitlab/-/work_items/590983
not-applicable, web
-
about.gitlab.com
/releases/2026/05/13/patch-release-gitlab-18-11-3-released/
release-notes, article
-
nvd.nist.gov
/vuln/detail/CVE-2026-2900
web
Sources
- CVE List CVE-2026-2900
- NVD CVE-2026-2900
- OSV BIT-gitlab-2026-2900
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: Added CPE configurations because not yet analyzed by NVD.