{"id":"CVE-2026-50165","title":"alf.io has Improper Access Control for Organization Owners that Exposes System Secrets","summary":"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 se…","severity":"high","cvss":7.1,"cvssVector":"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","cvssSource":"cna","cwe":["CWE-284"],"vendor":"alfio-event","product":"alf.io","affected":["alf.io < 2.0-M5-2606"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-10T17:58:35.051357Z"},"published":"2026-09-09","updated":"2026-09-10","sourceUpdated":"2026-09-10T17:59:28.378Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-50165","references":[{"url":"https://github.com/alfio-event/alf.io/security/advisories/GHSA-x473-r8w6-fcq5","label":"https://github.com/alfio-event/alf.io/security/advisories/GHSA-x473-r8w6-fcq5"}],"tags":["cve.org"],"epss":0.00207,"epssPercentile":0.11129,"ingestedAt":"2026-09-11T14:42:19.863Z","slug":"CVE-2026-50165","body":"## Overview\n\nalf.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.\n\n## Affected\n\n- `alf.io < 2.0-M5-2606`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}