Key Exchange without Entity Authentication Affecting matrix-js-sdk package, versions <19.7.0
Threat Intelligence
EPSS
0.12% (47th
percentile)
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Test your applications- Snyk ID SNYK-JS-MATRIXJSSDK-3035643
- published 29 Sep 2022
- disclosed 29 Sep 2022
- credit Unknown
Introduced: 29 Sep 2022
CVE-2022-39250 Open this link in a new tabHow to fix?
Upgrade matrix-js-sdk to version 19.7.0 or higher.
Overview
matrix-js-sdk is a Matrix Client-Server SDK for Javascript
Affected versions of this package are vulnerable to Key Exchange without Entity Authentication. An attacker cooperating with a malicious homeserver could interfere with the verification flow between two users, injecting its own cross-signing user identity in place of one of the users’ identities. This would lead to the other device trusting/verifying the user identity under the control of the homeserver instead of the intended one.
References
CVSS Scores
version 3.1