Improper Input Validation

matrix-js-sdk is vulnerable to Improper Input Validation. The vulnerability is due to inadequate validation in the MatrixClient::getJoinedRooms function, which allows an attacker to replace a tombstoned room with an unrelated attacker-controlled room...

CVE-2025-59160

Matrix JavaScript SDK is a Matrix Client-Server SDK for JavaScript and TypeScript. matrix-js-sdk before 38.2.0 has insufficient validation of room predecessor links in MatrixClient::getJoinedRooms, allowing a remote attacker to attempt to replace a tombstoned room with an unrelated...

matrix-js-sdk information leakage vulnerability

matrix-js-sdk is an application component of Matrix open source. An information disclosure vulnerability exists in matrix-js-sdk, which stems from the MatrixClient.sendSharedHistoryKeys function being susceptible to interception by a malicious master server...