CVE-2025-12669 PUBLISHED

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

Assigner: GitLab
Reserved: 03.11.2025 Published: 14.05.2026 Updated: 14.05.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS Score: 5.4

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	Required	Availability Impact	None

CVSS 3.1

Product Status

Vendor	GitLab
Product	GitLab
Versions	Default: unaffected affected from 15.11 to 18.9.7 (excl.) affected from 18.10 to 18.10.6 (excl.) affected from 18.11 to 18.11.3 (excl.)

Solutions

Upgrade to versions 18.9.7, 18.10.6, 18.11.3 or above.

Credits

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

References

Problem Types

CWE-94: Improper Control of Generation of Code ('Code Injection') CWE