CVE-2023-3906

Improper Validation of Specified Type of Input in GitLab

State: Published
Severity: 3.5 Low
Published: Sep 29, 2023
Updated: Aug 14, 2026
Reserved: Jul 25, 2023

Description

An input validation issue in the asset proxy in GitLab EE, affecting all versions from 12.3 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1, allowed an authenticated attacker to craft image urls which bypass the asset proxy.

Scores

CVSS	Score	Vector	Source
3.1	3.5 Low	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N	GitLab

Weaknesses

CWE-1287 Improper Validation of Specified Type of Input

Affected Products

Product	Versions
GitLabGitLab	12.3 to before 16.2.8Affected 16.3 to before 16.3.5Affected 16.4 to before 16.4.1Affected

References

GitLab Issue #419213issue-tracking
HackerOne Bug Bounty Report #2071411technical-descriptionexploitpermissions-requiredbroken-link

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