high7.0
CVE-2026-73409
Budibase: Server Filesystem Existence/Read Oracle via Builder-Controlled MongoDB tlsCertificateKeyFile
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @budibase/server | <= 3.38.1 | none recorded |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-ppr4-5f46-j9c6
- https://github.com/Budibase/budibase/security/advisories/GHSA-ppr4-5f46-j9c6
- https://github.com/Budibase/budibase/pull/19244
- https://github.com/Budibase/budibase/commit/5e19b935536d6d1be1f47100e43c6fb30917826e
- https://github.com/Budibase/budibase/releases/tag/3.40.0
- https://github.com/Budibase/budibase/commit/e58aa31e18272f6a1a8aeb525b7eef0b01b1dd43
- https://github.com/Budibase/budibase/releases/tag/3.40.1