FKIE_CVE-2026-34595

Vulnerability from fkie_nvd - Published: 2026-03-31 16:16 - Updated: 2026-04-02 17:12
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.70 and 9.7.0-alpha.18, an authenticated user with find class-level permission can bypass the protectedFields class-level permission setting on LiveQuery subscriptions. By sending a subscription with a $or, $and, or $nor operator value as a plain object with numeric keys and a length property (an "array-like" object) instead of an array, the protected-field guard is bypassed. The subscription event firing acts as a binary oracle, allowing the attacker to infer whether a protected field matches a given test value. This issue has been patched in versions 8.6.70 and 9.7.0-alpha.18.
References
security-advisories@github.comhttps://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98Patch
security-advisories@github.comhttps://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2Patch
security-advisories@github.comhttps://github.com/parse-community/parse-server/pull/10350Issue Tracking, Patch
security-advisories@github.comhttps://github.com/parse-community/parse-server/pull/10351Issue Tracking, Patch
security-advisories@github.comhttps://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2Patch, Vendor Advisory
Impacted products
Vendor Product Version
parseplatform parse-server *
parseplatform parse-server *
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
parseplatform parse-server 9.7.0
To clipboard 

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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