Vulnerability · Published Aug 28, 2026 · Assigned by VulnCheck

CVE-2026-82240Budibase before 3.41.3 Privilege Escalation via User Update API

High 8.1

In plain English

A high-severity missing authorization 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 0.4% (higher than 30% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.4%top 69.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Budibase before 3.41.3 fails to validate app-scoped builder role assignments in the public user create and update endpoints, allowing an authenticated app-scoped builder to grant builder access to unrelated apps. Attackers can submit crafted requests to the user update API with builder.apps fields to escalate privileges and gain unauthorized builder access to other applications in the same tenant.

Affected products (as reported)

Vendor	Product	Versions
budibase	server	0 – before 3.41.3

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

GitHub Security Advisory (GHSA-468g-55qj-v8rr) vendor-advisory
VulnCheck Advisory: Budibase before 3.41.3 Privilege Escalation via User Update API third-party-advisory