Parse Server: File creation and deletion bypasses `readOnlyMasterKey` write restriction
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
parse-servernpm | >= 9.0.0, < 9.5.0-alpha.3 | 9.5.0-alpha.3 |
parse-servernpm | < 8.6.5 | 8.6.5 |
Affected products
3- osv-coords2 versions
< 9.5.0+ 1 more
- (no CPE)range: < 9.5.0
- (no CPE)range: >= 9.0.0, < 9.5.0-alpha.3
- Range: < 8.6.5
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-xfh7-phr7-gr2xghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-30228ghsaADVISORY
- github.com/parse-community/parse-server/releases/tag/8.6.5ghsax_refsource_MISCWEB
- github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.3ghsax_refsource_MISCWEB
- github.com/parse-community/parse-server/security/advisories/GHSA-xfh7-phr7-gr2xghsax_refsource_CONFIRMWEB
News mentions
0No linked articles in our index yet.