matrix-org/matrix-react-sdk · Security
Matrix SDK for React's URL preview setting for a room is controllable by the homeserver
- GHSA ID
- GHSA-f83w-wqhc-cfp4
- CVE ID
- CVE-2024-42347
- Severity
- medium
- Published
- Updated
- CVSS
- 4.1 · CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
- CVSS v3
- 4.1 · CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
- CVSS v4
- 5.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/U:Red
Description
Impact
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.
Even if the CVSS score would be 4.1 (AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N) the maintainer classifies this as High severity issue.
Patches
This was patched in matrix-react-sdk 3.105.1.
Workarounds
Deployments that trust their homeservers, as well as closed federations of trusted servers, are not affected.
References
N/A.
CWEs
- CWE-359 · Exposure of Private Personal Information to an Unauthorized Actor