{"id":"CVE-2026-50165","summary":"alf.io has Improper Access Control for Organization Owners that Exposes System Secrets","details":"alf.io is an open source ticket reservation system for conferences, trade shows, workshops, and meetups. An Improper Access Control issue in versions prior to 2.0-M5-2605 allows an organization owner to read system-level configuration secrets through organization/event scoped \"single configuration\" endpoints. The affected endpoints require organization or event ownership, but they accept an arbitrary configuration key and then return the first matching value from a lookup that includes system-level configuration. As a result, an organization owner can retrieve secrets intended to be administrator-only, including the system API key when it is configured. Version 2.0-M5-2605 fixes the issue.","aliases":["GHSA-x473-r8w6-fcq5"],"modified":"2026-09-12T03:30:42.771715247Z","published":"2026-09-09T20:25:55.460Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-284"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50165.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50165.json"},{"type":"ADVISORY","url":"https://github.com/alfio-event/alf.io/security/advisories/GHSA-x473-r8w6-fcq5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50165"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/alfio-event/alf.io","events":[{"introduced":"0"},{"fixed":"2b4759f9136cf5c6f5cb7784c30c9a09da217151"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.0-M5-2606"}],"source":"AFFECTED_FIELD"}}],"versions":["2.0-M5-2509","2.0-M5-2502","2.0-M5","2.0-M4-2304","2.0-M4-2301","2.0-M4-2204","2.0-M4","2.0-M4.RC4","2.0-M4.RC3","2.0-M4.RC2","2.0-M4.RC1","2.0-M3","2.0-M2","2.0-M1-1906","2.0-M1-1906.1","2.0-M1","2.0-M0","1.14.1","1.14","1.14-RC2","1.14-RC1","1.13","1.13-RC3","1.13-RC2","1.13-RC1","1.12","1.12-RC4","1.12-RC3","1.12-RC2","1.12-RC1","1.11","1.10.1","1.10","1.10-RC2","1.10-RC1","1.9.1","1.9","1.8","1.8-RC2","1.8-RC1","1.7","1.6","1.5","1.4.1","1.4","1.4-RC2","alfio-1.3.1","alfio-1.3","alfio-1.3-beta1","alfio-1.2","alfio-1.1","v1.0-pre-rename-v2","v1.0-pre-rename"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50165.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"}]}