CVE-2026-30228
CVE-2026-30228 · Parse Server: File creation and deletion bypasses `readOnlyMasterKey` write restriction
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.5 and 9.5.0-alpha.3, the readOnlyMasterKey can be used to create and delete files via the Files API (POST /files/:filename, DELETE /files/:filename). This bypasses the read-only restriction which violates the access scope of the readOnlyMasterKey. Any Parse Server deployment that uses readOnlyMasterKey and exposes the Files API is affected. An attacker with access to the readOnlyMasterKey can upload arbitrary files or delete existing files. This issue has been patched in versions 8.6.5 and 9.5.0-alpha.3.
CVSS 6.9 · Medium · EPSS 0.5% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
parse-server
- Versions
- < 8.6.5: Affected
- < 9.5.0-alpha.3: Affected
No fix published
parse-server npm
- Affected ranges
- SEMVER: ≥ 9.0.0, < 9.5.0-alpha.3
Update to 9.5.0-alpha.3
parse-server npm
- Affected ranges
- SEMVER: < 8.6.5
Update to 8.6.5