CVE-2026-34784
Parse Server: Streaming file download bypasses afterFind file trigger authorization
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory 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
References (5)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
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