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.
History

Thu, 05 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
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.
Title Twenty: SSRF protection bypass via HTTP redirect following in secure HTTP client
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-05T16:23:31.020Z

Reserved: 2026-02-17T03:08:23.490Z

Link: CVE-2026-27023

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-05T19:16:05.493

Modified: 2026-03-05T19:38:33.877

Link: CVE-2026-27023

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.