CVE-2026-73409
CVE-2026-73409 · Budibase: Server Filesystem Existence/Read Oracle via Builder-Controlled MongoDB tlsCertificateKeyFile
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 5.1 · Medium · EPSS 0.3%
- Published
- Updated
Stack: node
Affected products and versions
budibase
- Versions
- < 3.40.1: Affected
No fix published
@budibase/server npm
- Affected ranges
- SEMVER: ≤ 3.38.1
No fix published
Original sources
- https://github.com/Budibase/budibase/security/advisories/GHSA-ppr4-5f46-j9c6
- https://github.com/Budibase/budibase/pull/19244
- https://github.com/Budibase/budibase/commit/e58aa31e18272f6a1a8aeb525b7eef0b01b1dd43
- https://github.com/Budibase/budibase/releases/tag/3.40.1
- https://nvd.nist.gov/vuln/detail/CVE-2026-73409