CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AI Score
Confidence
High
matrix-js-sdk is vulnerable to Uncontrolled Recursion. The vulnerability is caused due to an infinite recursion in getRoomUpgradeHistory
function causing the code to hang. A malicious homeserver can craft a room or room structure such that the predecessors form a cycle and also by calling leaveRoomChain()
function.