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    CVE-2026-27023

    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.

    Published:Mar 5, 2026
    Last Modified:Apr 18, 2026
    EPS:Mar 5, 2026
    EPSS Score:0.00036
    CVSS Score:5

    Affected Products

    Vendor
    Twenty
    Product
    Twenty

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

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    CVE-2026-44729 (CVSS 8.7) — Twenty is an open source CRM. In 1.18.0 and earlier, the file serving endpoints in Twenty CRM at /files/* and …
    CVE-2026-33975 (CVSS 8.3) — Twenty is an open source CRM built with NestJS (Node.js). In versions 1.18.0 and earlier, the SSRF protection …
    CVE-2026-35451 (CVSS 5.7) — Twenty is an open source CRM. Prior to 1.20.6, a Stored Cross-Site Scripting (XSS) vulnerability exists in the…
    CVE-2026-26720 (CVSS 9.8) — An issue in Twenty CRM v1.15.0 and before allows a remote attacker to execute arbitrary code via the local.dri…
    CVE-2024-28435 (CVSS 5.4) — The CRM platform Twenty version 0.3.0 is vulnerable to SSRF via file upload.…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High