Twenty CRM: Unauthorized Access to Internal Network

Summary

An attacker could use Twenty's webhooks or image uploads to access internal systems. This is a security risk if your Twenty CRM is connected to sensitive internal systems. Update to version 1.18 or later.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software

Vendor	Product	Affected versions	Fix available
twenty	twenty	<= 1.18.0	–

Original title

Twenty is an open source CRM. Prior to version 1.18, the SSRF protection in SecureHttpClientService validated request URLs at the request level but did not validate redirect targets. An authenticat...

Original description

Twenty is an open source CRM. Prior to version 1.18, the SSRF protection in SecureHttpClientService validated request URLs at the request level but did not validate redirect targets. An authenticated user who could control outbound request URLs (e.g., webhook endpoints, image URLs) could bypass private IP blocking by redirecting through an attacker-controlled server. This issue has been patched in version 1.18.

nvd CVSS3.1 5.0

Vulnerability type

CWE-918 Server-Side Request Forgery (SSRF)