CVE-2026-50165

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    CVE-2026-50165

    Published: 9 Sept 2026Last Modified: 12 Sept 2026

    Summary: alf.io has Improper Access Control for Organization Owners that Exposes System Secrets

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50165.json, https://github.com/alfio-event/alf.io/security/advisories/GHSA-x473-r8w6-fcq5, https://nvd.nist.gov/vuln/detail/CVE-2026-50165

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -2b4759f9136cf5c6f5cb7784c30c9a09da217151

    Affected versions

    2.0-M5-2509

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-50165 | CVE-DB