Unauthenticated GraphQL access via premature WebSocket handling
Published Dec 9, 2023 · Updated Mar 24, 2026
Authorization bypass in Red Hat build of Quarkus allows remote attackers to access secured GraphQL operations over WebSockets. SmallRyeGraphQLProcessor registers the WebSocket handler before authentication and authorization, so the connection lacks authenticated user context. Exposure requires a secured GraphQL endpoint with an operation lacking role-based permission, and successful requests can read protected data or invoke permitted application functionality.
Summary
What happened
Authorization bypass in Red Hat build of Quarkus allows remote attackers to access secured GraphQL operations over WebSockets. SmallRyeGraphQLProcessor registers the WebSocket handler before authentication and authorization, so the connection lacks authenticated user context. Exposure requires a secured GraphQL endpoint with an operation lacking role-based permission, and successful requests can read protected data or invoke permitted application functionality.
The record
- CVE
- CVE-2023-6394
- Published
- Dec 9, 2023
- Updated
- Mar 24, 2026
- Vendor
- Red Hat
- Product
- Red Hat build of Quarkus
- Classifications
- CWE-862, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 9, 2023CVE publishedPublication date reported by the CVE source.
- Mar 24, 2026Record updatedLatest update available in the CVE record.
Exploitability
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Is a vulnerable build present?
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What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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