# CVE-2026-50165

## Summary

- **CVE ID:** CVE-2026-50165
- **Severity:** HIGH
- **CVSS Score:** 7.1 (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)
- **CWE:** CWE-284
- **Published:** Sep 9, 2026
- **Last Modified:** Sep 10, 2026

## 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.

## Affected Products

- alfio-event — alf.io (< 2.0-M5-2606)

## References

- [CNA](https://github.com/alfio-event/alf.io/security/advisories/GHSA-x473-r8w6-fcq5)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 10.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._