Parser Server's streaming file download bypasses afterFind file trigger authorization
Impact
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.
Patches
The streaming file download path now executes the afterFind(Parse.File) trigger before sending any data. Authentication is resolved from the session token header so that trigger validators can distinguish authenticated from unauthenticated requests.
Workarounds
Use beforeFind(Parse.File) instead of afterFind(Parse.File) for file access authorization. The beforeFind trigger runs on all download paths including streaming.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | parse-server | >= 9.0.0, < 9.7.1-alpha.1, < 8.6.71 | 9.7.1-alpha.1, 8.6.71 |
References
- https://github.com/parse-community/parse-server/security/advisories/GHSA-hpm8-9qx6-jvwv
- https://nvd.nist.gov/vuln/detail/CVE-2026-34784
- 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
- https://github.com/parse-community/parse-server
- CVSS 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- Weakness (CWE)
CWE-285- Platform
- npm
- Package
parse-server- Disclosed
- 01.04.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-hpm8-9qx6-jvwv - CC BY 4.0
Vulnerability history: parse-server
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 116
- First → latest
- 06.2019 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 17
- High 49
- Medium 40
- Low 10
Disclosures per year
- 2019: 2
- 2020: 4
- 2021: 4
- 2022: 12
- 2023: 5
- 2024: 4
- 2025: 6
- 2026: 79
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Parser Server's streaming file download bypasses afterFind file trigger authorization this entry
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