CVE-2026-41891: CI4MS has a Deactivated User Session Bypass (active=0)

May 4, 2026 (updated May 8, 2026)

The auth filter has the deactivated/banned user check commented out.

References

github.com/advisories/GHSA-5hfv-c864-qcq9
github.com/ci4-cms-erp/ci4ms/commit/2f38284281ce6b435ea42003951f14109ac2cea7
github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.8.0
github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-5hfv-c864-qcq9
nvd.nist.gov/vuln/detail/CVE-2026-41891

Code Behaviors & Features

Detect and mitigate CVE-2026-41891 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →