{"id":"CVE-2026-50165","state":"PUBLISHED","title":"alf.io has Improper Access Control for Organization Owners that Exposes System Secrets","description":"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.","publishedAt":"2026-09-09T20:25:55.460Z","updatedAt":"2026-09-10T17:59:28.378Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["alfio-event alf.io"],"affected":[{"vendor":"alfio-event","product":"alf.io","versions":[{"version":"< 2.0-M5-2606","status":"affected"}]}],"references":["https://github.com/alfio-event/alf.io/security/advisories/GHSA-x473-r8w6-fcq5"],"weaknesses":["CWE-284"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/50xxx/CVE-2026-50165.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-50165","state":"PUBLISHED","datePublished":"2026-09-09T20:25:55.460Z","dateUpdated":"2026-09-10T17:59:28.378Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-03T20:54:20.432Z"},"containers":{"cna":{"title":"alf.io has Improper Access Control for Organization Owners that Exposes System Secrets","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"alfio-event","product":"alf.io","versions":[{"version":"< 2.0-M5-2606","status":"affected"}]}],"references":[{"url":"https://github.com/alfio-event/alf.io/security/advisories/GHSA-x473-r8w6-fcq5","name":"https://github.com/alfio-event/alf.io/security/advisories/GHSA-x473-r8w6-fcq5","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","description":"CWE-284: Improper Access Control","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-09T20:25:55.460Z"},"source":{"advisory":"GHSA-x473-r8w6-fcq5","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T17:58:35.051357Z","id":"CVE-2026-50165","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-10T17:59:28.378Z"}}]}}}