CVE-2023-3102: Insertion of Sensitive Information Into Sent Data in GitLab

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-07-21 · updated 2026-06-17
Weakness: CWE-201

Description

A sensitive information leak issue has been discovered in GitLab EE affecting all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1, which allows access to titles of private issue and MR.

Affected products

GitLab: from 16.0.0 before 16.0.6; 16.1.0 — fixed in 16.0.6

How to fix

Upgrade to a fixed version: GitLab 16.0.6. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/gitlab/-/issues/414269
https://hackerone.com/reports/2012073
https://gitlab.com/gitlab-org/gitlab/-/issues/414269
https://hackerone.com/reports/2012073

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