CVE-2024-47824 HIGH

CVE-2024-47824: Malicious homeservers can steal message keys when the matrix-react-sdk user invites another user to a room

Vendor Matrix-Org
Product matrix-react-sdk
Weakness CWE-200 · Info exposure
Published October 15, 2024
Last update November 21, 2024
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

matrix-react-sdk is react-based software development kit for inserting a Matrix chat/VOIP client into a web page. Starting in version 3.18.0 and before 3.102.0, matrix-react-sdk allows a malicious homeserver to potentially steal message keys for a room when a user invites another user to that room, via injection of a malicious device controlled by the homeserver. This is possible because matrix-react-sdk before 3.102.0 shared historical message keys on invite. Version 3.102.0 fixes this issue by disabling sharing message keys on invite by removing calls to the vulnerable functionality. No known workarounds are available.

Key dates

02Disclosure timeline

October 15, 2024 CVE published
November 21, 2024 Record updated