SB2026010789 - Multiple vulnerabilities in GitLab Community Edition (CE) and Enterprise Edition (EE)



SB2026010789 - Multiple vulnerabilities in GitLab Community Edition (CE) and Enterprise Edition (EE)

Published: January 7, 2026

Security Bulletin ID SB2026010789
Severity
Medium
Patch available
YES
Number of vulnerabilities 7
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 71% Low 29%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 7 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2025-10569)

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

The vulnerability exists due to insufficient validation in import functionality. A remote user can send specially crafted responses to external API calls and perform a denial of service (DoS) attack.


2) Information disclosure (CVE-ID: CVE-2025-3950)

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output in Mermaid diagram rendering. A remote user can obtain sensitive connection information by referencing specially crafted images that bypass asset proxy protection.


3) Improper access control (CVE-ID: CVE-2025-11246)

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

The vulnerability exists due to improper access restrictions in GraphQL runnerUpdate mutation. A remote user with specific permissions can remove all project runners from unrelated projects by manipulating GraphQL runner associations.


4) Missing authorization (CVE-ID: CVE-2025-13781)

The vulnerability allows a remote user to modify instance-wide AI feature provider settings.

The vulnerability exists due to missing authorization checks in AI GraphQL mutation. A remote user can modify instance-wide AI feature provider settings by exploiting missing authorization checks in GraphQL mutations.


5) Missing authorization (CVE-ID: CVE-2025-13772)

The vulnerability allows a remote user to access and utilize AI model settings.

The vulnerability exists due to missing authorization checks in Duo Workflows API. A remote user can access and utilize AI model settings from unauthorized namespaces by manipulating namespace identifiers in API requests.


6) Reflected cross-site scripting (CVE-ID: CVE-2025-13761)

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 Web IDE. A remote attacker 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.


7) Cross-site scripting (CVE-ID: CVE-2025-9222)

The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in Flavored Markdown placeholder. 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.