9.1

CVE-2026-34532

Parse Server: Cloud function validator bypass via prototype chain traversal

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.67 and 9.7.0-alpha.11, an attacker can bypass Cloud Function validator access controls by appending "prototype.constructor" to the function name in the URL. When a Cloud Function handler is declared using the function keyword and its validator is a plain object or arrow function, the trigger store traversal resolves the handler through its own prototype chain while the validator store fails to mirror this traversal, causing all access control enforcement to be skipped. This allows unauthenticated callers to invoke Cloud Functions that are meant to be protected by validators such as requireUser, requireMaster, or custom validation logic. This issue has been patched in versions 8.6.67 and 9.7.0-alpha.11.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Parseplatform ≫ Parse-server SwPlatform node.js Version < 8.6.67
Parseplatform ≫ Parse-server SwPlatform node.js Version >= 9.0.0 < 9.7.0
Parseplatform ≫ Parse-server Version 9.7.0 Update alpha1 SwPlatform node.js
Parseplatform ≫ Parse-server Version 9.7.0 Update alpha10 SwPlatform node.js
Parseplatform ≫ Parse-server Version 9.7.0 Update alpha2 SwPlatform node.js
Parseplatform ≫ Parse-server Version 9.7.0 Update alpha3 SwPlatform node.js
Parseplatform ≫ Parse-server Version 9.7.0 Update alpha4 SwPlatform node.js
Parseplatform ≫ Parse-server Version 9.7.0 Update alpha5 SwPlatform node.js
Parseplatform ≫ Parse-server Version 9.7.0 Update alpha6 SwPlatform node.js
Parseplatform ≫ Parse-server Version 9.7.0 Update alpha7 SwPlatform node.js
Parseplatform ≫ Parse-server Version 9.7.0 Update alpha8 SwPlatform node.js
Parseplatform ≫ Parse-server Version 9.7.0 Update alpha9 SwPlatform node.js
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.28% 0.192
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 9.1 3.9 5.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
security-advisories@github.com 9.1 0 0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/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
CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

https://github.com/parse-community/parse-server/pull/10342
Patch
Issue Tracking
https://github.com/parse-community/parse-server/pull/10343
Patch
Issue Tracking
https://github.com/parse-community/parse-server/commit/4fc48cf28f22eea200d74d883505f485234a48d7
Patch
https://github.com/parse-community/parse-server/commit/dc59e272665644083c5b7f6862d88ce1ef0b2674
Patch
https://github.com/parse-community/parse-server/security/advisories/GHSA-vpj2-qq7w-5qq6
Patch
Vendor Advisory
Mitigation