SSRF in Budibase Server
CVE-2026-72855
Budibase before 3.40.0 contains server-side request forgery vulnerabilities in OpenAPI query import and REST query execution that allow authenticated builder-level users to bypass DNS pinning protections through DNS rebinding attacks. Attackers can configure hostnames that resolve to public addresses during validation but resolve to loopback or private addresses during actual connection, allowing access to blocked internal HTTP services.
Vulnerability class: SSRF (Server-Side Request Forgery)
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.
Affected products
- Budibase Server — versions 0, 3.40.0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-72855?
- CVE-2026-72855 is a high-severity vulnerability in Budibase Server, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2026-08-13.
- How severe is CVE-2026-72855?
- High severity. CVSS v3 base score is 8.5 out of 10.