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BIT-parse-2026-30947 — Parse Server ha a bypass of class-level permissions in LiveQuery

Affected: Bitnami: parse

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2 and 8.6.16, class-level permissions (CLP) are not enforced for LiveQuery subscriptions. An unauthenticated or unauthorized client can subscribe to any LiveQuery-enabled class and receive real-time events for all objects, regardless of CLP restrictions. All Parse Server deployments that use LiveQuery with class-level permissions are affected. Data intended to be restricted by CLP is leaked to unauthorized subscribers in real time. This vulnerability is fixed in 9.5.2 and 8.6.16.

EUVD-2026-275480

fkie_cve-2026-30947

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.3 and 8.6.16, class-level permissions (CLP) are not enforced for LiveQuery subscriptions. An unauthenticated or unauthorized client can subscribe to any LiveQuery-enabled class and receive real-time events for all objects, regardless of CLP restrictions. All Parse Server deployments that use LiveQuery with class-level permissions are affected. Data intended to be restricted by CLP is leaked to unauthorized subscribers in real time. This vulnerability is fixed in 9.5.2-alpha.3 and 8.6.16.

GHSA-7ch5-98q2-7289 — Parse Server has a bypass of class-level permissions in LiveQuery

Affected: npm: parse-server

### Impact

Class-level permissions (CLP) are not enforced for LiveQuery subscriptions. An unauthenticated or unauthorized client can subscribe to any LiveQuery-enabled class and receive real-time events for all objects, regardless of CLP restrictions.

All Parse Server deployments that use LiveQuery with class-level permissions are affected. Data intended to be restricted by CLP is leaked to unauthorized subscribers in real time.

### Patches

The fix enforces CLP before creating the subscription and during event delivery.

### Workarounds

Disable LiveQuery for classes that use CLP restrictions by removing them from the `liveQuery.classNames` server configuration.

### References

- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-7ch5-98q2-7289 - Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.3 - Fix Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.16