What is CVE-2026-55583?

CVE-2026-55583 is a high-severity vulnerability in Twentyhq Twenty, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.6/10. Published 2026-06-24.

How severe is CVE-2026-55583?

High severity. CVSS v3 base score is 7.6 out of 10.

Auth bypass in Twentyhq Twenty

CVE-2026-55583

Twenty is an open-source CRM (customer relationship management) platform. Prior to 2.9.0, Twenty was vulnerable to a cross-workspace insecure direct object reference (IDOR) in the AI agent monitor's AgentTurnResolver, in packages/twenty-se…

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N.

Affected products

Twentyhq Twenty — versions < 2.9.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-55583?: CVE-2026-55583 is a high-severity vulnerability in Twentyhq Twenty, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.6/10. Published 2026-06-24.
How severe is CVE-2026-55583?: High severity. CVSS v3 base score is 7.6 out of 10.