What is CVE-2026-44729?

CVE-2026-44729 is a high-severity vulnerability in Twenty, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-05-26.

How severe is CVE-2026-44729?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Twenty

CVE-2026-44729

Twenty is an open source CRM. In 1.18.0 and earlier, the file serving endpoints in Twenty CRM at /files/* and /file/:fileFolder/:id serve uploaded files using fileStream.pipe(res) without setting any Content-Type, Content-Disposition, or X…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (11.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Twenty
Twentyhq Twenty — versions <= 1.18.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-44729?: CVE-2026-44729 is a high-severity vulnerability in Twenty, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-05-26.
How severe is CVE-2026-44729?: High severity. CVSS v3 base score is 8.7 out of 10.