VULNERABILITY INTELLIGENCE

CVE-2024-42369

CVSS score4.1 MEDIUM
EPSS probability0.48%
CISA KEVNot currently listed
Published2024-08-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:L

Description

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.

Weakness classification

  • security-advisories@github.com: CWE-674
  • nvd@nist.gov: CWE-674

Primary references