CVE WatchSep 10, 2026

CVE-2026-50165

alf.io is an open source ticket reservation system for conferences, trade shows, workshops, and meetups. An Improper Access Control issue in

CVSS

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No CVSS

EPSS

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KEV

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Exploit Today

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0-100

Published: Sep 9, 2026 · Last modified: Sep 10, 2026 · CWE-284

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

github.comhttps://github.com/alfio-event/alf.io/security/advisories/GHSA-x473-r8w6-fcq5

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