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OpenAdvisories
Medium · 5.0 CVE-2026-3848 EUVD-2026-11208GHSA-j592-x6jp-9fg8

Improper Neutralization of CRLF Sequences ('CRLF Injection') in GitLab

Published Mar 11, 2026 · Updated Mar 12, 2026 · Assigned by GitLab

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.11 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user to make unintended internal requests through proxy environments under certain conditions due to improper input validation in import functionality.

Affected products

VendorProductAffectedFixed
GitLab GitLab 8.11 – < 18.7.6, 18.8 – < 18.8.6, 18.9 – < 18.9.2 18.7.6

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS gitlab No fix yet —

Advisories 2

References