CVE-2023-6688

Name: CVE-2023-6688
Creator: NVD / NIST
Published: 2024-05-14T14:35:33.147+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.74%

Last modified Jun 17, 2026

CVE-2023-6688 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.11 prior to 16.11.2. A problem with the processing logic for Google Chat Messages integration may lead to a regular expression DoS attack on the server.. EPSS estimates a 0.74% chance of exploitation in the next 30 days.

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.11 prior to 16.11.2. A problem with the processing logic for Google Chat Messages integration may lead to a regular expression DoS attack on the server.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.74%

50.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 16.11.0, < 16.11.2

References

https://gitlab.com/gitlab-org/gitlab/-/issues/434854Broken Link
https://hackerone.com/reports/2270362Permissions Required
https://gitlab.com/gitlab-org/gitlab/-/issues/434854Broken Link
https://hackerone.com/reports/2270362Permissions Required

Timeline

Published: May 14, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-6688?

How severe is CVE-2023-6688?

CVE-2023-6688 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.74% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6688?

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-2023-6688?

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

Scan your code now

Source: NVD / NIST