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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 10 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 10 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Alfio-event
Alfio-event alf.io
Vendors & Products Alfio-event
Alfio-event alf.io

Wed, 09 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
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.
Title alf.io has Improper Access Control for Organization Owners that Exposes System Secrets
Weaknesses CWE-284
References
Metrics cvssV4_0

{'score': 7.1, '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'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-10T17:59:28.378Z

Reserved: 2026-06-03T20:54:20.432Z

Link: CVE-2026-50165

cve-icon Vulnrichment

Updated: 2026-09-10T17:58:45.919Z

cve-icon NVD

Status : Deferred

Published: 2026-09-09T21:17:03.033

Modified: 2026-09-10T18:18:02.023

Link: CVE-2026-50165

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T12:00:10Z

Weaknesses