Improper Verification of Cryptographic Signature Affecting parse-server package, versions <8.6.10>=9.0.0-alpha.1 <9.5.0-alpha.11
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-15440565
- published8 Mar 2026
- disclosed7 Mar 2026
- creditAsuka Chloe, Devansh Batham
Introduced: 7 Mar 2026
CVE-2026-30863 (opens in a new tab)How to fix?
Upgrade parse-server to version 8.6.10, 9.5.0-alpha.11 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 Verification of Cryptographic Signature in the authentication process when the audience configuration option is not set. An attacker can gain unauthorized access by presenting a validly signed JWT issued for a different application.