🔐 CVE Alert

CVE-2025-12669

MEDIUM 5.4

Improper Control of Generation of Code ('Code Injection') in GitLab

CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to inject HTML and JavaScript into email notifications sent to other users due to improper input sanitization.

CWE CWE-94
Vendor gitlab
Product gitlab
Ecosystems
Industries
Technology
Published May 14, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Affected Versions

GitLab / GitLab
15.11 < 18.9.7 18.10 < 18.10.6 18.11 < 18.11.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗
hackerone.com: https://hackerone.com/reports/3368096 gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/579385 about.gitlab.com: https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/

Credits

Thanks [ricardobrito](https://hackerone.com/ricardobrito) for reporting this vulnerability through our HackerOne bug bounty program