CVE-2023-5963

Name: CVE-2023-5963
Creator: NVD / NIST
Published: 2023-11-06T13:15:10.11+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2023-5963 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. An issue has been discovered in GitLab EE with Advanced Search affecting all versions from 13.9 to 16.3.6, 16.4 prior to 16.4.2 and 16.5 prior to 16.5.1 that could allow a denial of service in the Advanced Search function by chaining too many syntax operators.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

An issue has been discovered in GitLab EE with Advanced Search affecting all versions from 13.9 to 16.3.6, 16.4 prior to 16.4.2 and 16.5 prior to 16.5.1 that could allow a denial of service in the Advanced Search function by chaining too many syntax operators.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.48%

37.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-770

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 13.9.0, <= 16.3.6
Gitlab	Gitlab	>= 16.4.0, < 16.4.2
Gitlab	Gitlab	16.5.0

References

https://gitlab.com/gitlab-org/gitlab/-/issues/423468Broken Link
https://gitlab.com/gitlab-org/gitlab/-/issues/423468Broken Link

Timeline

Published: Nov 6, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5963?

How severe is CVE-2023-5963?

CVE-2023-5963 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5963?

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-2023-5963?

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

Scan your code now

Source: NVD / NIST