Improper Validation of Syntactic Correctness of Input Affecting parse-server package, versions <8.6.43>=9.0.0-alpha.1 <9.6.0-alpha.19
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-PARSESERVER-15679883
- published18 Mar 2026
- disclosed17 Mar 2026
- creditUnknown
Introduced: 17 Mar 2026
CVE-2026-32770 (opens in a new tab)How to fix?
Upgrade parse-server to version 8.6.43, 9.6.0-alpha.19 or higher.
Overview
parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js.
Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the LiveQuery subscription when an invalid regular expression pattern is provided. An attacker can cause the server process to terminate, resulting in denial of service for all connected clients by submitting a subscription request containing a malformed regular expression.
Workaround
This vulnerability can be mitigated by disabling LiveQuery if it is not needed.