Improper Check for Unusual or Exceptional Conditions Affecting parse-server package, versions >=9.0.0-alpha.1 <9.5.1-alpha.1<8.6.12
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-15444916
- published10 Mar 2026
- disclosed10 Mar 2026
- credit0xkakashi
Introduced: 10 Mar 2026
NewCVE-2026-30938 (opens in a new tab)How to fix?
Upgrade parse-server to version 9.5.1-alpha.1, 8.6.12 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 Check for Unusual or Exceptional Conditions via the Utils class. An attacker can bypass configured keyword restrictions by placing a nested object or array before a prohibited keyword in the request payload, causing the scan to terminate early and allowing prohibited keywords to be included undetected.
Workaround
This vulnerability can be mitigated by using a Cloud Code beforeSave trigger to validate incoming data for prohibited keywords across all classes.