Vulnerability · Published Jan 9, 2025 · Assigned by GitLab

CVE-2024-6324Inefficient Algorithmic Complexity in GitLab

Medium 4.3

In plain English

A medium-severity security flaw in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.7%top 46.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

An issue was discovered in GitLab CE/EE affecting all versions starting from 15.7 prior to 17.5.5, starting from 17.6 prior to 17.6.3, and starting from 17.7 prior to 17.7.1. It was possible to trigger a DoS by creating cyclic references between epics.

Affected products (as reported)

Vendor	Product	Versions
GitLab	GitLab	17.7 – before 17.7.117.6 – before 17.6.315.7 – before 17.5.5

Weakness: CWE-407 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References

GitLab Issue #468914 issue-tracking, permissions-required
https://about.gitlab.com/releases/2025/01/08/patch-release-gitlab-17-7-1-released/#cyclic-reference-of-epics-leads-resource-exhaustion
HackerOne Bug Bounty Report #2553716 technical-description, exploit, permissions-required