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CVE-2026-27023— Twenty: SSRF protection bypass via HTTP redirect following in secure HTTP client

CVSS 5.0 · Medium EPSS 0.04% · P11
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I. Basic Information for CVE-2026-27023

Vulnerability Information
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Vulnerability Title
Twenty: SSRF protection bypass via HTTP redirect following in secure HTTP client
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Twenty CRM 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Twenty CRM是Twenty开源的一个客户关系管理系统。 Twenty CRM 1.18之前版本存在代码问题漏洞，该漏洞源于SSRF保护未验证重定向目标，可能导致经过身份验证的用户通过攻击者控制的服务器重定向来绕过私有IP阻止。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
twentyhqtwenty < 1.18 -

II. Public POCs for CVE-2026-27023

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III. Intelligence Information for CVE-2026-27023

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IV. Related Vulnerabilities

Same product: twenty
Same vendor: twentyhq
Same weakness: CWE-918

V. Comments for CVE-2026-27023

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