SB2026082725 - Multiple vulnerabilities in GitLab Community Edition (CE) and Enterprise Edition (EE)

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Main Vulnerability Database SB2026082725

SB2026082725 - Multiple vulnerabilities in GitLab Community Edition (CE) and Enterprise Edition (EE)

Published: August 27, 2026

Security Bulletin ID SB2026082725
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 83% Low 17%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 vulnerabilities.


1) Inclusion of Functionality from Untrusted Control Sphere (CVE-ID: CVE-2026-18252)

CWE-ID: CWE-829 - Inclusion of Functionality from Untrusted Control Sphere

CVSSv4: 8.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]


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

The vulnerability exists due to inclusion of functionality from untrusted control sphere in Duo Claude AI agent. A remote user can execute arbitrary commands in a CI context.


2) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2026-77801)

CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling

CVSSv4: 7.1 [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]


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

The vulnerability exists due to missing object count limits in import pipeline. A remote user can pass specially crafted input to the application and perform a denial of service (DoS) attack.


3) Infinite loop (CVE-ID: CVE-2025-10903)

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

CVSSv4: 7.1 [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]


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

The vulnerability exists due to infinite loop in SCIM API. A remote user can consume all available system resources and cause denial of service conditions.


4) Authentication bypass using an alternate path or channel (CVE-ID: CVE-2026-3035)

CWE-ID: CWE-288 - Authentication Bypass Using an Alternate Path or Channel

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


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

The vulnerability exists due to improper authorization checks in protected environments. A remote administrator can access the terminal of a protected environment they are not authorized.


5) Acceptance of Extraneous Untrusted Data With Trusted Data (CVE-ID: CVE-2026-15387)

CWE-ID: CWE-349 - Acceptance of Extraneous Untrusted Data With Trusted Data

CVSSv4: 5.3 [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]


The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper handling of untrusted data in Pipeline Execution Policies. A remote user can influence the execution environment of Pipeline Execution Policy enforcement jobs.


6) Improper Authorization (CVE-ID: CVE-2026-7487)

CWE-ID: CWE-285 - Improper Authorization

CVSSv4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to improper authorization checks in merge request approval rules reset. A remote user can reset merge request approval rules.


Remediation

Install update from vendor's website.

References