Integer Overflow Vulnerability in GitLab CE/EE Affects Multiple Versions

CVE-2026-110264

What is CVE-2026-110264?

CVE-2026-110264 is an integer overflow vulnerability found in multiple versions of GitLab Community Edition (CE) and Enterprise Edition (EE), a web-based DevOps lifecycle tool that provides capabilities for Source Code Management (SCM) and Continuous Integration/Continuous Deployment (CI/CD). This vulnerability arises due to improper handling of specially crafted regular expressions, which allows an unauthenticated user to potentially execute arbitrary code on the GitLab server. The affected versions range from as early as 7.0 to specific releases prior to 19.5.1, making it a critical issue for organizations that utilize GitLab for project management and software development. With this vulnerability, attackers could gain unauthorized access and control over critical systems, significantly impacting the security posture of affected organizations.

Potential impact of CVE-2026-110264

1. Remote Code Execution: The vulnerability enables unauthenticated users to execute arbitrary code on the GitLab server, which can lead to full system compromise if exploited successfully. This level of access could allow attackers to manipulate repositories, modify sensitive configurations, and disrupt ongoing development processes.

2. Data Breaches: With the ability to execute arbitrary code, attackers could exfiltrate sensitive data from the GitLab instances, including intellectual property, proprietary code, and personal information of users, leading to significant reputational and financial damage for organizations.

3. Increased Attack Surface: The existence of this vulnerability may encourage other malicious actors to probe for weaknesses in GitLab installations, increasing the likelihood of ransomware or other exploit campaigns targeting organizations that fail to mitigate the risks associated with this vulnerability promptly.

News Articles

BleepingComputer

CVE-2026-110264CVE-2026-85706

GitLab warns of new max severity code execution vulnerability

GitLab has released security patches for a maximum-severity Regular Expression Compiler flaw that can let remote attackers run arbitrary code on vulnerable servers.

6 hours ago

The Hacker News

CVE-2026-110264

Critical GitLab Flaw (CVSS 10.0) Could Allow Unauthenticated RCE Across 12 Years of Releases

GitLab fixes CVE-2026-110264, a critical flaw that could allow unauthenticated code execution on self-managed versions dating back to 7.0.

23 hours ago

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