cvedb.io
CVE-2022-39246
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2022-09-28T20:15:14.160 · Last modified 2026-06-17T04:57:59.430

Summary

matrix-android-sdk2 is the Matrix SDK for Android. Prior to version 1.5.1, an attacker cooperating with a malicious homeserver can construct messages appearing to have come from another person. Such messages will be marked with a grey shield on some platforms, but this may be missing in others. This attack is possible due to the key forwarding strategy implemented in the matrix-android-sdk2 that is too permissive. Starting with version 1.5.1, the default policy for accepting key forwards has been made more strict in the matrix-android-sdk2. The matrix-android-sdk2 will now only accept forwarded keys in response to previously issued requests and only from own, verified devices. The SDK now sets a `trusted` flag on the decrypted message upon decryption, based on whether the key used to decry

Affected products

matrix — software_development_kit

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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.