CVE-2026-15423 json
Incorrect Authorization in GitLab
published 2mo ago modified 2mo ago also BIT-gitlab-2026-15423 , EUVD-2026-57393
- cvss
- 8.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute CI/CD pipelines on a protected branch without the required push permissions due to improper authorization in pipeline reference validation.
Patch / fix
- bitnami gitlab 19.0.6, 19.1.4, 19.2.2
- GitLab GitLab 19.0.6, 19.1.4, 19.2.2
Is CVE-2026-15423 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
- 2mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- hackerone.com https://hackerone.com/reports/3832069 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N |
| OSV | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=19.0.0, <19.0.6 >=19.1.0, <19.1.4 >=19.2.0, <19.2.2 |
19.0.6 19.1.4 19.2.2 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
- Technology feeds
References
-
hackerone.com
/reports/3832069
technical-description, exploit, permissions-required, web
-
gitlab.com
/gitlab-org/gitlab/-/work_items/605705
broken-link, web
-
docs.gitlab.com
/releases/patches/patch-release-gitlab-19-2-2-released/
release-notes, article
-
nvd.nist.gov
/vuln/detail/CVE-2026-15423
web
Sources
- CVE List CVE-2026-15423
- NVD CVE-2026-15423
- OSV BIT-gitlab-2026-15423
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.