Improper Encoding or Escaping of Output in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2026-9694

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Main Vulnerability Database Vulnerabilities #VU134382

Improper Encoding or Escaping of Output in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2026-9694

Published: June 11, 2026


Vulnerability identifier: #VU134382
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-9694
CWE-ID: CWE-116
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote user to inject arbitrary content while impersonating the GitLab Support Bot.

The vulnerability exists due to improper neutralization in Service Desk email template processing when handling a specially crafted Service Desk email reply. A remote user can send a specially crafted email reply to inject arbitrary content while impersonating the GitLab Support Bot.

User interaction is required.


Affected software

Gitlab Community Edition
GitLab Enterprise Edition

How to mitigate CVE-2026-9694

Install security update from vendor's website.

Gitlab Community Edition - addressed in versions 18.10.8, 18.11.5, 19.0.2
GitLab Enterprise Edition - addressed in versions 18.10.8, 18.11.5, 19.0.2

External References

Related Security Bulletins