CVE-2026-73409

Description

Budibase is an open-source low-code platform. Prior to 3.40.1, packages/server/src/integrations/mongodb.ts passed builder-controlled tlsCertificateKeyFile and tlsCAFile values directly to MongoClient on Budibase Cloud. A builder could submit absolute server paths through /api/datasources/verify and distinguish readable existing files from missing files by comparing the driver error, exposing a filesystem existence and readability oracle on the shared server. This issue is fixed in version 3.40.1.

References

https://github.com/Budibase/budibase/security/advisories/GHSA-ppr4-5f46-j9c6

https://github.com/Budibase/budibase/releases/tag/3.40.1

https://github.com/Budibase/budibase/pull/19244

https://github.com/Budibase/budibase/commit/e58aa31e18272f6a1a8aeb525b7eef0b01b1dd43

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4