CRLF injection in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2026-3848
Published: March 12, 2026
Vulnerability identifier: #VU123944
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N]
CVE-ID: CVE-2026-3848
CWE-ID: CWE-93
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to inject arbitrary data in server response.
The vulnerability exists due to insufficient validation of attacker-supplied data in import functionality. A remote user can pass specially crafted data to the application containing CR-LF characters and modify application behavior.
Affected software
Gitlab Community Edition
GitLab Enterprise Edition
GitLab Enterprise Edition
How to mitigate CVE-2026-3848
Install updates from vendor's website.
Gitlab Community Edition - addressed in versions 18.7.6, 18.8.6, 18.9.2
GitLab Enterprise Edition - addressed in versions 18.7.6, 18.8.6, 18.9.2
GitLab Enterprise Edition - addressed in versions 18.7.6, 18.8.6, 18.9.2