cvedb.io
CVE-2023-29529
MEDIUM · CVSS 5
EPSS exploitation probability: 0%
Published 2023-04-14T19:15:09.400 · Last modified 2026-06-17T05:50:28.423

Summary

matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. An attacker present in a room where an MSC3401 group call is taking place can eavesdrop on the video and audio of participants using matrix-js-sdk, without their knowledge. To affected matrix-js-sdk users, the attacker will not appear to be participating in the call. This attack is possible because matrix-js-sdk's group call implementation accepts incoming direct calls from other users, even if they have not yet declared intent to participate in the group call, as a means of resolving a race condition in call setup. Affected versions do not restrict access to the user's outbound media in this case. Legacy 1:1 calls are unaffected. This is fixed in matrix-js-sdk 24.1.0. As a workaround, users may hold group calls i

Affected products

matrix — javascript_sdk

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.