Performance Issue in GitLab CE/EE Affecting Diffs with Conflicts
CVE-2024-9631

7.5HIGH

Key Information:

Vendor
Gitlab
Status
Gitlab
Vendor
CVE Published:
5 February 2025

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A performance issue has been identified in GitLab CE/EE versions that affects the responsiveness when viewing diffs of merge requests (MR) containing conflicts. This flaw emerges in all versions starting from 13.6 leading up to 17.2.9, and also impacts versions 17.3 prior to 17.3.5 and 17.4 prior to 17.4.2. Users might experience significant delays, affecting workflow efficiency during code review processes.

Affected Version(s)

GitLab 13.6 < 17.2.9

GitLab 17.3 < 17.3.5

GitLab 17.4 < 17.4.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2024-9631 - Proof of Concept

References

https://gitlab.com/gitlab-org/gitlab/-/issues/480867
issue-trackingpermissions-required
https://hackerone.com/reports/2650086
technical-descriptionexploitpermissions-required

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [a92847865](https://hackerone.com/a92847865) for reporting this vulnerability through our HackerOne bug bounty program
.