PT-2026-40852 · Gitlab · Gitlab Ce/Ee

CVE-2025-12669 · Published 2026-05-14 · Updated 2026-05-18

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:N/AC:L/Au:S/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions GitLab CE/EE versions 15.11 through 18.9.6 GitLab CE/EE versions 18.10 through 18.10.5 GitLab CE/EE versions 18.11 through 18.11.2

Description An issue exists where improper input sanitization allows an authenticated user to inject HTML and JavaScript into email notifications sent to other users.

Recommendations Update versions 15.11 through 18.9.6 to 18.9.7. Update versions 18.10 through 18.10.5 to 18.10.6. Update versions 18.11 through 18.11.2 to 18.11.3.

Exploit

Fix

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

BDU:2026-07007

BIT-GITLAB-2025-12669

CVE-2025-12669

Affected Products

Gitlab Ce/Ee

References · 13

• 🔥 https://hackerone.com/reports/3368096 · Exploit
• https://bdu.fstec.ru/vul/2026-07007 · Security Note
• https://ubuntu.com/security/CVE-2025-12669 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-12669 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-12669 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-12669 · Security Note
• https://osv.dev/vulnerability/BIT-gitlab-2025-12669 · Vendor Advisory
• https://twitter.com/f1tym1/status/2055451716972110038 · Twitter Post
• https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released · Note
• https://gitlab.com/gitlab-org/gitlab/-/work_items/579385 · Note
• https://t.me/cveNotify/163401 · Telegram Post
• https://twitter.com/f1tym1/status/2055768860221939998 · Twitter Post
• https://t.me/cveNotify/163735 · Telegram Post