CVE-2025-12669

MEDIUM

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

Title source: cna

Description

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.

References (3)

Core 3

Core References

Exploit technical-description exploit permissions-required

HackerOne Bug Bounty Report #3368096

https://hackerone.com/reports/3368096

https://gitlab.com/gitlab-org/gitlab/-/work_items/579385

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/

Scores

CVSS v3 5.4

EPSS 0.0003

EPSS Percentile 9.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-94

Status published

Products (4)

GitLab/GitLab 15.11 - 18.9.7

gitlab/gitlab 15.11.0 - 18.9.7 (2 CPE variants)

GitLab/GitLab 18.10 - 18.10.6

GitLab/GitLab 18.11 - 18.11.3

Published May 14, 2026

Tracked Since May 14, 2026