Vulnerability · Published May 27, 2026 · Assigned by GitHub_M
CVE-2026-45719Budibase: CouchDB Reduce Injection via Unsanitized Calculation Parameter in V1 Views API
Medium 6.5
In plain English
A medium-severity code injection in budibase from Budibase. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Budibase is an open-source low-code platform. Prior to 3.38.1, the V1 Views API (POST /api/views) accepts a calculation parameter from the request body that is interpolated directly into a CouchDB reduce function definition without validation. Although an internal SCHEMA_MAP object defines the valid calculation types (sum, count, stats), no actual validation is performed against this map before the value is used in string interpolation. A user with Builder permissions can inject arbitrary JavaScript code that will be executed within the CouchDB JavaScript engine when the view is queried. This vulnerability is fixed in 3.38.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @budibase/server | 3.38.1 | GHSA-363w-hvwh-w7m6 |
Affected products (as reported)
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
References
- https://github.com/Budibase/budibase/security/advisories/GHSA-363w-hvwh-w7m6 x_refsource_CONFIRM
- https://github.com/Budibase/budibase/releases/tag/3.38.1 x_refsource_MISC