Auth bypass in Budibase
CVE-2026-25040
Budibase is a low code platform for creating internal tools, workflows, and admin panels. In versions up to and including 3.26.3, a Creator-level user, who normally has no UI permission to invite users, can manipulate API requests to invite new users with any role, including Admin, Creator, or App Viewer, and assign them to any group in the organization. This allows full privilege escalation, bypassing UI restrictions, and can lead to complete takeover of the workspace or organization. As of time of publication, no known fixed versions are available.
Vulnerability class: Broken Access Control
EPSS: 0.005 (41.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Budibase — versions <= 3.26.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Exploit, x_refsource_MISC)
- security-advisories@github.com (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-25040?
- CVE-2026-25040 is a high-severity vulnerability in Budibase, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2026-01-29.
- How severe is CVE-2026-25040?
- High severity. CVSS v3 base score is 8.8 out of 10.