CVE-2026-30947
published 2026-03-10CVE-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…
PriorityP345high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
0.43%
34.1th percentile
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.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| parse-community | parse-server | < 8.6.16 | 8.6.16 |
| parse-community | parse-server | — | — |
| parse-community | parse-server | >= 0 < 8.6.16 | 8.6.16 |
| parse-community | parse-server | >= 9.0.0 < 9.5.2-alpha.3 | 9.5.2-alpha.3 |
| parseplatform | parse-server | < 8.6.16 | 8.6.16 |
| parseplatform | parse-server | — | — |
| parseplatform | parse-server | >= 9.0.0 < 9.5.2 | 9.5.2 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv4.08.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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OSV
Parse Server has a bypass of class-level permissions in LiveQuery
osv·2026-03-11
CVE-2026-30947 [HIGH] Parse Server has a bypass of class-level permissions in LiveQuery
Parse Server has a bypass of class-level permissions in LiveQuery
### 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://githu
GHSA
Parse Server has a bypass of class-level permissions in LiveQuery
ghsa·2026-03-11
CVE-2026-30947 [HIGH] CWE-863 Parse Server has a bypass of class-level permissions in LiveQuery
Parse Server has a bypass of class-level permissions in LiveQuery
### 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://githu
No detection rules found.
No public exploits indexed.
2026-03-10
Published