SSRF Vulnerability in Twenty CRM by TwentyHQ
CVE-2026-33975

8.3HIGH

Key Information:

Vendor

Twentyhq

Status
Twenty
Vendor
CVE Published:
5 May 2026

What is CVE-2026-33975?

The SSRF vulnerability found in Twenty CRM versions up to 1.18.0 allows an authenticated user to bypass security measures using IPv4-mapped IPv6 addresses. The SecureHttpClientService's protection mechanism fails to recognize these addresses correctly, enabling potential access to internal IPs and sensitive cloud metadata endpoints. This could lead to unauthorized data exfiltration, including compromising crucial credentials like IAM keys, posing serious security risks to users.

Affected Version(s)

twenty <= 1.18.0

References

https://github.com/twentyhq/twenty/security/advisories/GH...
x_refsource_CONFIRM

CVSS V4

Score:
8.3
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.