CVE-2026-30947
Parse Server has a bypass of class-level permissions in LiveQuery
Impact
### 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
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | parse-server | >= 9.0.0, < 9.5.2-alpha.3 | 9.5.2-alpha.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Parseplatform | Parse-Server | before 8.6.16 from 9.0.0 before 9.5.2 Version 9.5.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/parse-community/parse-server/releases/tag/8.6.16
- https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.3
- https://github.com/parse-community/parse-server/security/advisories/GHSA-7ch5-98q2-7289
- https://github.com/advisories/GHSA-7ch5-98q2-7289
- https://nvd.nist.gov/vuln/detail/CVE-2026-30947