CVE catalog
CVE-2023-29529
UBUNTU-CVE-2023-29529
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.54% · Oct 25, 2026
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 in private rooms where only the exact users who are expected to participate in the call are present.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | node-matrix-js-sdk | 11 | 9.11.0+~cs9.9.16-1 | vulnerable |
| Debian | node-matrix-js-sdk | 11 | 9.11.0+~cs9.9.16-2 | vulnerable |
| Debian | node-matrix-js-sdk | 11 | 9.3.0+~cs9.9.16-2 | vulnerable |
| Debian | node-matrix-js-sdk | 11 | 9.7.0~~rc1+~cs9.9.16-1 | vulnerable |
| Debian | node-matrix-js-sdk | 11 | 9.7.0~~rc1+~cs9.9.16-2 | vulnerable |
| Ubuntu | node-matrix-js-sdk | 20.04 | 0.9.2-1 | vulnerable |
| Ubuntu | node-matrix-js-sdk | 22.04 | 9.3.0+~cs9.9.16-2 | vulnerable |
| Ubuntu | node-matrix-js-sdk | 22.04 | 9.11.0+~cs9.9.16-1 | vulnerable |
| Ubuntu | node-matrix-js-sdk | 24.04 | 9.11.0+~cs9.9.16-2 | vulnerable |
Fixed-version evidence
OpenFactory catalog packages
No matching packages in this catalog.
Observed: