CVE-2025-12734GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to, under certa…
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No exploitation reported and no EPSS estimate yet.
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GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to, under certain conditions, render content in dialogs to other users by injecting malicious HTML content into merge request titles.
- CVSS
- 3.5 LOW (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-116
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
gitlab gitlab gitlab:gitlab | from 15.6.0 before 18.4.6; from 15.6.0 before 18.4.6; from 18.5.0 before 18.5.4; from 18.5.0 before 18.5.4; from 18.6.0 before 18.6.2; from 18.6.0 before 18.6.2 | NVD |
References
- https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/release-notes, vendor-advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/579573broken-link
- https://hackerone.com/reports/3379381permissions-required
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.