{"api_version":"1","generated_at":"2026-04-23T05:14:42+00:00","cve":"CVE-2023-29529","urls":{"html":"https://cve.report/CVE-2023-29529","api":"https://cve.report/api/cve/CVE-2023-29529.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-29529","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-29529"},"summary":{"title":"CVE-2023-29529","description":"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.","state":"PUBLIC","assigner":"security-advisories@github.com","published_at":"2023-04-14 19:15:00","updated_at":"2023-04-25 14:06:00"},"problem_types":["NVD-CWE-noinfo"],"metrics":[],"references":[{"url":"https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6g67-q39g-r79q","name":"https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6g67-q39g-r79q","refsource":"MISC","tags":[],"title":"Invisible eavesdropping in group calls · Advisory · matrix-org/matrix-js-sdk · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/matrix-org/matrix-js-sdk/releases/tag/v24.1.0","name":"https://github.com/matrix-org/matrix-js-sdk/releases/tag/v24.1.0","refsource":"MISC","tags":[],"title":"Release v24.1.0 · matrix-org/matrix-js-sdk · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/matrix-org/matrix-spec-proposals/pull/3401","name":"https://github.com/matrix-org/matrix-spec-proposals/pull/3401","refsource":"MISC","tags":[],"title":"MSC3401: Native Group VoIP Signalling by ara4n · Pull Request #3401 · matrix-org/matrix-spec-proposals · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-29529","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-29529","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"29529","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"matrix","cpe5":"javascript_sdk","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"node.js","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2023-29529","ASSIGNER":"security-advisories@github.com","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. 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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."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-862: Missing Authorization","cweId":"CWE-862"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"matrix-org","product":{"product_data":[{"product_name":"matrix-js-sdk","version":{"version_data":[{"version_affected":"=","version_value":"< 24.1.0"}]}}]}}]}},"references":{"reference_data":[{"url":"https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6g67-q39g-r79q","refsource":"MISC","name":"https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6g67-q39g-r79q"},{"url":"https://github.com/matrix-org/matrix-spec-proposals/pull/3401","refsource":"MISC","name":"https://github.com/matrix-org/matrix-spec-proposals/pull/3401"},{"url":"https://github.com/matrix-org/matrix-js-sdk/releases/tag/v24.1.0","refsource":"MISC","name":"https://github.com/matrix-org/matrix-js-sdk/releases/tag/v24.1.0"}]},"source":{"advisory":"GHSA-6g67-q39g-r79q","discovery":"UNKNOWN"},"impact":{"cvss":[{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","version":"3.1"}]}},"nvd":{"publishedDate":"2023-04-14 19:15:00","lastModifiedDate":"2023-04-25 14:06:00","problem_types":["NVD-CWE-noinfo"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"},"exploitabilityScore":3.9,"impactScore":1.4}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:matrix:javascript_sdk:*:*:*:*:*:node.js:*:*","versionEndExcluding":"24.1.0","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}