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://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 software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | parse-server | >= 9.0.0, < 9.5.2-alpha.3, < 8.6.16 | 9.5.2-alpha.3, 8.6.16 |
References
- https://github.com/parse-community/parse-server/security/advisories/GHSA-7ch5-98q2-7289
- https://nvd.nist.gov/vuln/detail/CVE-2026-30947
- https://github.com/parse-community/parse-server
- 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
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N- Weakness (CWE)
CWE-863- Platform
- npm
- Package
parse-server- Disclosed
- 11.03.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-7ch5-98q2-7289 - CC BY 4.0
Vulnerability history: parse-server
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 116
- First → latest
- 06.2019 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 17
- High 49
- Medium 40
- Low 10
Disclosures per year
- 2019: 2
- 2020: 4
- 2021: 4
- 2022: 12
- 2023: 5
- 2024: 4
- 2025: 6
- 2026: 79
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Parse Server has a bypass of class-level permissions in LiveQuery this entry
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