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CVE-2026-34595

MEDIUM

4.3

Description

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.

Details CVE

Score CVSS v3.14.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie3/31/2026

Derniere modification4/2/2026

Sourcenvd

Observations honeypot0

Produits affectes

parseplatform:parse-server

Faiblesses (CWE)

CWE-843

References

https://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98(security-advisories@github.com)

https://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2(security-advisories@github.com)

https://github.com/parse-community/parse-server/pull/10350(security-advisories@github.com)

https://github.com/parse-community/parse-server/pull/10351(security-advisories@github.com)

https://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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