GHSA-6g67-q39g-r79q

Source

https://github.com/advisories/GHSA-6g67-q39g-r79q

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/04/GHSA-6g67-q39g-r79q/GHSA-6g67-q39g-r79q.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-6g67-q39g-r79q

Aliases

CVE-2023-29529

Published

2023-04-14T16:14:17Z

Modified

2026-09-10T03:49:53Z

Severity

5.0 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N CVSS Calculator

Summary

matrix-js-sdk vulnerable to invisible eavesdropping in group calls

Details

Impact

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.

Workarounds

Users may hold group calls in private rooms where only the exact users who are expected to participate in the call are present.

Database specific

{
    "cwe_ids":  [
        "CWE-862"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2023-04-14T16:14:17Z",
    "nvd_published_at":  "2023-04-14T19:15:00Z",
    "severity":  "MODERATE"
}

References

Affected packages

npm / matrix-js-sdk

Package

Name: matrix-js-sdk; View open source insights on deps.dev
Purl: pkg:npm/matrix-js-sdk

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

24.1.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/04/GHSA-6g67-q39g-r79q/GHSA-6g67-q39g-r79q.json"