CVE-2026-35482

Description

alf.io is an open source ticket reservation system for conferences, trade shows, workshops, and meetups. Prior to version 2.0-M5-2606, a sandbox escape vulnerability in the alf.io extension script engine allows an authenticated administrator to execute arbitrary operating system commands on the server. The extension system is intended to execute restricted JavaScript in a sandboxed Rhino environment; however, a combination of an unguarded injected Java object (`returnClass`) and an incomplete AST blocklist allows the sandbox to be fully escaped using Java reflection without triggering any validation errors. Version 2.0-M5-2606 patches the issue.

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Produits concernés

• alfio-event alf.io
• Alf alf

Scores CVSS

Faiblesses (CWE)

• CWE-863

Références

• https://github.com/alfio-event/alf.io/security/advisories/GHSA-3w8f-mcf6-cm7h ExploitVendor Advisory
• https://github.com/alfio-event/alf.io/security/advisories/GHSA-3w8f-mcf6-cm7h ExploitVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories