CVE-2023-5512

Name: CVE-2023-5512
Creator: NVD / NIST
Published: 2023-12-15T16:15:46.3+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.7/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2023-5512 is a medium-severity vulnerability rated 5.7/10 on the CVSS scale. An issue has been discovered in GitLab CE/EE affecting all versions from 16.3 before 16.4.4, all versions starting from 16.5 before 16.5.4, all versions starting from 16.6 before 16.6.2. File integrity may be compromised when specific HTML encoding is used for file names leading for incorrect representation in the UI.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

Description

An issue has been discovered in GitLab CE/EE affecting all versions from 16.3 before 16.4.4, all versions starting from 16.5 before 16.5.4, all versions starting from 16.6 before 16.6.2. File integrity may be compromised when specific HTML encoding is used for file names leading for incorrect representation in the UI.

Metrics

CVSS 3.1

5.7/10

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

EPSS Probability

0.49%

38.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 16.3.0, < 16.4.4
Gitlab	Gitlab	>= 16.5.0, < 16.5.4
Gitlab	Gitlab	>= 16.6.0, < 16.6.2

References

https://gitlab.com/gitlab-org/gitlab/-/issues/427827Broken Link
https://hackerone.com/reports/2194607Permissions Required
https://gitlab.com/gitlab-org/gitlab/-/issues/427827Broken Link
https://hackerone.com/reports/2194607Permissions Required

Timeline

Published: Dec 15, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5512?

How severe is CVE-2023-5512?

CVE-2023-5512 has a CVSS score of 5.7/10 (MEDIUM severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5512?

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-2023-5512?

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

Scan your code now

Source: NVD / NIST