Vulnerability Description
Budibase is a low code platform for creating internal tools, workflows, and admin panels. Prior to version 3.30.4, an unsafe `eval()` vulnerability in Budibase's view filtering implementation allows any authenticated user (including free tier accounts) to execute arbitrary JavaScript code on the server. This vulnerability ONLY affects Budibase Cloud (SaaS) - self-hosted deployments use native CouchDB views and are not vulnerable. The vulnerability exists in `packages/server/src/db/inMemoryView.ts` where user-controlled view map functions are directly evaluated without sanitization. The primary impact comes from what lives inside the pod's environment: the `app-service` pod runs with secrets baked into its environment variables, including `INTERNAL_API_KEY`, `JWT_SECRET`, CouchDB admin credentials, AWS keys, and more. Using the extracted CouchDB credentials, we verified direct database access, enumerated all tenant databases, and confirmed that user records (email addresses) are readable. Version 3.30.4 contains a patch.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Budibase | Budibase | < 3.30.4 |
Related Weaknesses (CWE)
References
- https://github.com/Budibase/budibase/commit/348659810cf930dda5f669e782706594c547Patch
- https://github.com/Budibase/budibase/pull/18087Issue Tracking
- https://github.com/Budibase/budibase/releases/tag/3.30.4Release Notes
- https://github.com/Budibase/budibase/security/advisories/GHSA-rvhr-26g4-p2r8ExploitVendor Advisory
FAQ
What is CVE-2026-27702?
CVE-2026-27702 is a vulnerability with a CVSS score of 9.9 (CRITICAL). Budibase is a low code platform for creating internal tools, workflows, and admin panels. Prior to version 3.30.4, an unsafe `eval()` vulnerability in Budibase's view filtering implementation allows a...
How severe is CVE-2026-27702?
CVE-2026-27702 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-27702?
Check the references section above for vendor advisories and patch information. Affected products include: Budibase Budibase.