CVE-2026-30850
Parse Server: File metadata endpoint bypasses `beforeFind` / `afterFind` trigger authorization
EPSS 0.29%
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.9 and 9.5.0, the file metadata endpoint (GET /files/:appId/metadata/:filename) does not enforce beforeFind / afterFind file triggers. When these triggers are used as access-control gates, the metadata endpoint bypasses them entirely, allowing unauthorized access to file metadata. This issue has been patched in versions 8.6.9 and 9.5.0.
How to fix CVE-2026-30850
To remediate CVE-2026-30850, upgrade the affected package to a fixed version below.
- —upgrade to 9.5.0 or later
- —upgrade to 8.6.9 or later
Is CVE-2026-30850 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 9.5.0
- from 0, < 8.6.9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |