CVE-2024-42369 — A room with itself as a its predecessor will freeze matrix-js-sdk
matrix-js-sdk is a Matrix messaging protocol Client-Server SDK for JavaScript. A malicious homeserver can craft a room or room structure such that the predecessors form a cycle.…
Published: 2024-08-20 · CVSS: 4.1 · CVSS 3.1
matrix-js-sdk is a Matrix messaging protocol Client-Server SDK for JavaScript. A malicious homeserver can craft a room or room structure such that the predecessors form a cycle. The matrix-js-sdk's getRoomUpgradeHistory function will infinitely recurse in this case, causing the code to hang. This method is public but also called by the 'leaveRoomChain()' method, so leaving a room will also trigger the bug. This was patched in matrix-js-sdk 34.3.1.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7