CVE-2026-3160: Information Disclosure in GitLab

The primary impact of CVE-2026-3160 is unauthorized access to Jira issue data. An attacker, already authenticated within GitLab, could leverage this vulnerability to view Jira issues associated with other projects or teams they are not explicitly authorized to access. This could expose sensitive information such as bug reports, feature requests, or internal discussions. The blast radius is limited to the Jira integration within GitLab; however, the potential for data leakage remains significant, particularly in organizations where Jira is used to manage critical project information. This vulnerability highlights the importance of proper access control enforcement within integrated systems.

1. 已保留2026-02-24
2. 发布日期2026-05-14

The recommended mitigation for CVE-2026-3160 is to immediately upgrade GitLab to version 18.11.3 or later. If upgrading is not immediately feasible, consider temporarily disabling the Jira integration until the upgrade can be performed. Review existing Jira integration configurations to ensure that access controls are properly enforced at the Jira level. While a WAF or proxy cannot directly prevent this vulnerability, they can be configured to monitor for unusual Jira access patterns that might indicate exploitation. After upgrading, verify the fix by attempting to access Jira issues outside the expected project scope; access should be denied.