CVE-2026-86341

GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1. Under certain conditions, an authenticated user could have caused specific Duo AI workflows to run under another user's identity due to improper user identity resolution.

GitLab has remediated an issue in GitLab EE affecting all versions from 16.4 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3. This issue could have allowed an authenticated user with developer-role permissions to execute arbitrary JavaScript in other users' browsers due to improper input sanitization.

GitLab has remediated an issue in GitLab EE affecting all versions from 18.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3. In customizable analytics dashboards, an authenticated user could have executed arbitrary JavaScript in the context of other users' browsers due to improper input sanitization.

GitLab has remediated an issue in GitLab EE affecting all versions from 18.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3. This issue could have allowed an authenticated user to execute arbitrary JavaScript in other users' browsers due to improper input sanitization.

GitLab EE contains an improper authorization check that, under certain conditions, could allow an authenticated user with developer-role permissions to bypass admin-configured AI tool governance controls for workflows in namespaces they do not control. Affected versions are from 19.1 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1.

GitLab EE versions from 18.7 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 have a vulnerability that under certain conditions could allow an authenticated user to access sensitive CI/CD variable values from debug-mode job traces through the Duo AI troubleshooting feature due to missing authorization checks.

GitLab has remediated an issue in GitLab EE affecting all versions from 12.3 to 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 under certain conditions could allow an authenticated user to achieve remote code execution by importing a specially crafted Git project export to overflow the Unicode conversion buffer used in Advanced Search indexing.

GitLab has remediated an issue in GitLab EE affecting all versions from 13.1 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with reporter-role permissions who authored a merge request could have reset merge request approval rules due to improper authorization checks.

GitLab EE versions from 18.9 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 have a vulnerability that allows an authenticated user with developer role to execute arbitrary commands in a CI context. This occurs through the Claude agent processing configuration from a user-controlled source.

GitLab EE contains a DoS vulnerability in the SCIM user provisioning feature. An authenticated user can send specially crafted input causing an unbounded loop, leading to denial of service.