CVE-2026-50165
HighCVSS 7.1Summary
In alf.io before version 2.0-M5-2605, an improper access control issue allows an organization owner to read system-level configuration secrets through organization/event scoped 'single configuration' endpoints, including the system API key.
Risk Assessment
An organization owner could obtain sensitive system data, potentially leading to unauthorized system access.
Recommendation
Update alf.io to version 2.0-M5-2605 or later to fix the issue.
Other vulnerabilities in alf.io
See all- CVE-2026-41412Medium
Vulnerability in alf.io before version 2.0-M5-2606: the extension sandbox injects an HTTP client (`simpleHttpClient`) into scripts. The `postFileAndSaveResponse()` method accepts arbitrary file paths without validation, allowing malicious scripts to read and exfiltrate any file to an attacker-controlled server.
- CVE-2026-35482High
A sandbox escape vulnerability in alf.io, an open source ticket reservation system, allows an authenticated administrator to execute arbitrary OS commands on the server via the extension mechanism.
Original NVD description (English source)
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.