SB2025121119 - Multiple vulnerabilities in GitLab Community Edition (CE) and Enterprise Edition (EE)
Published: December 11, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 10 secuirty vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2025-12716)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in Wiki. A remote user can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
2) Improper Encoding or Escaping of Output (CVE-ID: CVE-2025-8405)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper encoding in vulnerability reports. A remote user can inject malicious HTML into vulnerability code flow displays and perform unauthorized actions on behalf of other users.
3) Cross-site scripting (CVE-ID: CVE-2025-12029)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in Swagger UI. A remote user can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
4) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2025-12562)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to allocation of resources without limits or throttling in GraphQL endpoints. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
5) Authentication bypass using an alternate path or channel (CVE-ID: CVE-2025-11984)
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to authentication bypass issue for WebAuthn users. A remote user can bypass authentication process and gain unauthorized access to the application.
6) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2025-4097)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to allocation of resources without limits or throttling in ExifTool processing. A remote user can pass specially crafted input to the application and perform a denial of service (DoS) attack.
7) Input validation error (CVE-ID: CVE-2025-14157)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to allocation of resources without limits or throttling in Commit API. A remote user can pass specially crafted input to the application and perform a denial of service (DoS) attack.
8) Authorization bypass through user-controlled key (CVE-ID: CVE-2025-11247)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to authorization bypass through user-controlled key in compliance frameworks. A remote user can gain unauthorized access to sensitive information on the system.
9) Information Exposure Through an Error Message (CVE-ID: CVE-2025-13978)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to generation of error message containing sensitive information. A remote user can gain unauthorized access to sensitive information on the system.
10) Stored cross-site scripting (CVE-ID: CVE-2025-12734)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in merge request titles. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Install update from vendor's website.