Vulnerability · Published Aug 13, 2026 · Assigned by VulnCheck

CVE-2026-72849Budibase before 3.40.0 Identity Confusion via Chat-Link Handoff CSRF

High 7.7

In plain English

A high-severity cross-site request forgery in server from budibase. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 3.1)7.7High

Exploit odds (30 days)0.2%top 94.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	@budibase/server	no fix listed	GHSA-pvcr-8mvp-w8qr

Affected products (as reported)

Vendor	Product	Versions
budibase	server	0 – before 3.40.0

Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

References

GitHub Security Advisory (GHSA-pvcr-8mvp-w8qr) vendor-advisory
VulnCheck Advisory: Budibase before 3.40.0 Identity Confusion via Chat-Link Handoff CSRF third-party-advisory