CVE-2026-73665
Description
FreePBX is an open source IP PBX. Prior to 17.0.9, the UCP Node server on ports 8001 and 8003 uses io.use(checkAuth) in node/lib/server.js, but Socket.IO version 4 applies that middleware only to the default namespace. An unauthenticated client can connect to custom namespaces that do not consistently invoke checkAuth in node/lib/auth.js and send crafted event values containing carriage-return or newline characters through the Asterisk Manager Interface action path patched by node/lib/asterisk-manager-patch.js, allowing arbitrary commands to execute as the asterisk service user. This issue is fixed in version 17.0.9.
How to fix
- sangoma freepbx17.0.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sangoma freepbx | v < 17.0.9 | 17.0.9 |
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Attack Surface Management
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