SB2025062519 - Multiple vulnerabilities in GitLab CE/EE



SB2025062519 - Multiple vulnerabilities in GitLab CE/EE

Published: June 25, 2025

Security Bulletin ID SB2025062519
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 80% Low 20%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2025-3279)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when handling GraphQL requests. A remote user can send specially crafted GraphQL requests to the application and perform a denial of service (DoS) attack.


2) Missing authorization (CVE-ID: CVE-2025-1754)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to upload arbitrary files to the system.

The vulnerability exists due to missing authorization checks in the API. A remote non-authenticated attacker can upload arbitrary files to public projects by sending crafted API requests and consume all available storage, leading to a denial of service condition. 


3) Improper access control (CVE-ID: CVE-2025-5315)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user can bypass implemented UI-enforced role restriction by sending crafted API requests.


4) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2025-2938)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to escalate privileges within the application.

The vulnerability exists due to application does not properly impose security restrictions during approval process. A remote authenticated user can gain elevated permissions within the application. 


5) Improper access control (CVE-ID: CVE-2025-5846)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user can assign unrelated compliance frameworks to projects by sending crafted GraphQL mutations that bypassed framework-specific permission checks.


Remediation

Install update from vendor's website.