CVE-2024-42347

Published: Aug 6, 2024Modified: Jun 17, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability: 2.8 / Impact: 3.6

Source: NVD

Description

matrix-react-sdk is a react-based SDK for inserting a Matrix chat/voip client into a web page. A malicious homeserver could manipulate a user's account data to cause the client to enable URL previews in end-to-end encrypted rooms, in which case any URLs in encrypted messages would be sent to the server. This was patched in matrix-react-sdk 3.105.0. Deployments that trust their homeservers, as well as closed federations of trusted servers, are not affected. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected (1)

Products: Matrix: Matrix React Sdk

1 product

Matrix React Sdk

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Matrix Matrix React Sdk	Before 3.105.1

Related CWEs

Exposure of Private Personal Information to an Unauthorized Actor

The product does not properly prevent a person's private, personal information from being accessed by actors who either (1) are not explicitly authorized to access the information or (2) do not have the implicit consent of the person about whom the information is collected.

References (2)

https://github.com/matrix-org/matrix-react-sdk/releases/tag/v3.105.1

Source: security-advisories@github.com

Release Notes

https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-f83w-wqhc-cfp4

Source: security-advisories@github.com

Vendor Advisory

Timeline

No history available yet.