title: Prototype pollution in matrix-react-sdk
description: matrix-react-sdk is a Matrix chat protocol SDK for React Javascript. Events sent with special strings in key places can temporarily disrupt or impede the matrix-react-sdk from functioning properly, such as by causing room or event tile crashes. The remainder of the application can appear functional, though certain rooms/events will not be rendered. This issue has been fixed in matrix-react-sdk 3.53.0 and users are advised to upgrade. There are no known workarounds for this vulnerability.
problem types: CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
affected:
{
vendor: matrix-org
product: matrix-react-sdk
versions:
version: < 3.53.0, status: affected
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 8.2
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
version: 3.1
]