CVE-2026-27023 — Twenty: SSRF protection bypass via HTTP redirect following in secure HTTP client
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 tar…
Published: 2026-03-05 · CVSS: 5.0 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7