{"id":"CVE-2026-41891","summary":"CI4MS: Deactivated User Session Bypass (active=0)","details":"CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. From version 0.26.0 to before version 0.31.8.0, the auth filter has the deactivated/banned user check commented out. This issue has been patched in version 0.31.8.0.","aliases":["GHSA-5hfv-c864-qcq9"],"modified":"2026-08-07T11:51:04.728350742Z","published":"2026-05-07T03:24:43.940Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-613"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41891.json"},"references":[{"type":"WEB","url":"https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.8.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41891.json"},{"type":"ADVISORY","url":"https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-5hfv-c864-qcq9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41891"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ci4-cms-erp/ci4ms","events":[{"introduced":"fb60f5a96a76953c1c24740fc5d616c765d0aec6"},{"fixed":"44f10f8dcbdced7cf38221b764d674e3469563e9"}],"database_specific":{"source":["AFFECTED_FIELD","DESCRIPTION","REFERENCES"],"extracted_events":[{"introduced":"0.26.0"},{"fixed":"0.31.8.0"},{"introduced":"0"}]}}],"versions":["0.31.7.0","0.31.6.0","0.31.5.0","0.31.4.0","0.31.3.0","0.31.2.0","0.31.1.0","0.31.0.0","0.28.6.0","0.28.5.0","0.28.4.0","0.28.3.0","0.28.0.0","0.27.0.0","0.26.3.4","0.26.3.3","0.26.3.2","0.26.3.1","0.26.3.0","0.26.2.0","0.26.1.0","0.26.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41891.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}]}