CVE-2023-3949

Insertion of Sensitive Information Into Sent Data in GitLab

An issue has been discovered in GitLab affecting all versions starting from 11.3 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for unauthorized users to view a public projects' release descriptions via an atom endpoint when release access on the public was set to only project members.

Affected

GitLab

CVSS v3.1 NVD

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

0.59% chance of exploitation in the next 30 days, 47th percentile

Published

2023-12-01

Updated

2025-11-20

Proof-of-concept exploits (1)

• https://hackerone.com/reports/2079374

Security advisories

• https://gitlab.com/gitlab-org/gitlab/-/issues/419664

References

• CVE Record
• NVD entry