What is CVE-2026-72849?

CVE-2026-72849 is a high-severity vulnerability in Budibase Server, classified under Cross-Site Request Forgery (CSRF). CVSS score: 7.7/10. Published 2026-08-13.

How severe is CVE-2026-72849?

High severity. CVSS v3 base score is 7.7 out of 10.

CSRF in Budibase Server

CVE-2026-72849

Budibase before 3.40.0 contains a cross-site request forgery vulnerability in the chat-link handoff endpoint that allows attackers to bind an external chat identity to a victim's account. Attackers can craft a phishing page that auto-submits a POST request with a leaked confirmation token to bind their chat identity to a victim user's account, enabling impersonation within agent operations and inheritance of victim permissions.

Vulnerability class: CSRF (Cross-Site Request Forgery)

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Budibase Server — versions 0, 3.40.0

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-72849?: CVE-2026-72849 is a high-severity vulnerability in Budibase Server, classified under Cross-Site Request Forgery (CSRF). CVSS score: 7.7/10. Published 2026-08-13.
How severe is CVE-2026-72849?: High severity. CVSS v3 base score is 7.7 out of 10.