CVE-2022-39252highCWE-287CWE-322

CVE-2022-39252: high-severity vulnerability in matrix-org matrix-rust-sdk

When matrix-rust-sdk recieves forwarded room keys, the reciever doesn't check if it requested the key from the forwarder

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.6epss 0.6%
matrix-rust-sdk is an implementation of a Matrix client-server library in Rust, and matrix-sdk-crypto is the Matrix encryption library. Prior to version 0.6, when a user requests a room key from their devices, the software correctly remembers the request. When the user receives a forwarded room key, the software accepts it without checking who the room key came from. This allows homeservers to try to insert room keys of questionable validity, potentially mounting an impersonation attack. Version 0.6 fixes this issue.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Affected products
matrix-org · matrix-rust-sdk
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