VULNERABILITY INTELLIGENCE

CVE-2024-42347

CVSS score7.7 HIGH
EPSS probability0.43%
CISA KEVNot currently listed
Published2024-08-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-359
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references