Incorrect Authorization Affecting parse-server package, versions >=9.0.0 <9.10.1-alpha.14>=8.2.2 <8.6.94
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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- published20 Oct 2026
- disclosed12 Oct 2026
- creditUnknown
Introduced: 12 Oct 2026
NewCVE-2026-109302 (opens in a new tab)How to fix?
Upgrade parse-server to version 9.10.1-alpha.14, 8.6.94 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 Incorrect Authorization via the IntrospectionControlPlugin in src/GraphQL/ParseGraphQLServer.js, which reads requestContext.request.query to detect and block introspection queries. On an automatic persisted query (APQ) cache hit, Apollo Server resolves the operation text into requestContext.source and never populates request.query, so the introspection check receives undefined, silently skips both guards, and allows the full GraphQL schema to be disclosed. An attacker can replay a previously cached APQ hash to retrieve the schema even when public introspection is explicitly disabled.
Note: Earlier Parse Server 9 releases and the affected Parse Server 8 releases are affected only when NODE_ENV is not set to production, because Apollo Server's own introspection control is otherwise active.