CVE-2023-5825 - CVE House
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Status published Medium CVE-2023-5825

Loop with Unreachable Exit Condition ('Infinite Loop') in GitLab

Vulnerability Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.2 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. A low-privileged attacker can point a CI/CD Component to an incorrect path and cause the server to exhaust all available memory through an infinite loop and cause Denial of Service.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

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

References

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CVE-2025-9642
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CVE-2025-9484
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Affected Vendor

Affected Software

GitLab
Vulnerable Versions:
16.2, 16.4, 16.5

Timeline

Official Publish: November 6th, 2023
Last Modified: April 29th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-835

MITRE ATT&CK TTPs

T1499 Endpoint Denial of Service
Impact
T1190 Exploit Public-Facing Application
Initial Access
T1059 Command and Scripting Interpreter
Execution
T1562 Impair Defenses
Defense Evasion
T1485 Data Destruction
Impact