CVE-2023-3949

Name: CVE-2023-3949
Creator: NVD / NIST
Published: 2023-12-01T07:15:08.973+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.54%

Last modified Jun 17, 2026

CVE-2023-3949 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.54%

41.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-201

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 11.3.0, < 16.4.3
Gitlab	Gitlab	>= 16.5.0, < 16.5.3
Gitlab	Gitlab	16.6.0

References

https://gitlab.com/gitlab-org/gitlab/-/issues/419664Broken Link, Vendor Advisory
https://hackerone.com/reports/2079374Permissions Required, Third Party Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/419664Broken Link, Vendor Advisory
https://hackerone.com/reports/2079374Permissions Required, Third Party Advisory

Timeline

Published: Dec 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-3949?

How severe is CVE-2023-3949?

CVE-2023-3949 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2023-3949?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-3949?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST