CVE-2022-36060: Prototype pollution in matrix-react-sdk

matrix-js-sdk is a Matrix messaging protocol Client-Server SDK for JavaScript. In versions prior to 24.0.0 events sent with special strings in key places can temporarily disrupt or impede the matrix-js-sdk from functioning properly, potentially impacting the consumer's ability to process data safely. Note that the matrix-js-sdk can appear to be operating normally but be excluding or corrupting runtime data presented to the consumer. This vulnerability is distinct from GHSA-rfv9-x7hh-xc32 which covers a similar issue. The issue has been patched in matrix-js-sdk 24.0.0 and users are advised to upgrade. There are no known workarounds for this vulnerability.

### Impact Events sent with special strings in key places can temporarily disrupt or impede the matrix-react-sdk from functioning properly, such as by causing room or event tile crashes. The remainder of the application can appear functional, though certain rooms/events will not be rendered. ### Patches This is fixed in matrix-react-sdk 3.53.0 ### Workarounds There are no workarounds. Please upgrade immediately. ### References https://learn.snyk.io/lessons/prototype-pollution/javascript/ ### For more information If you have any questions or comments about this advisory please email us at [security at matrix.org](mailto:[email protected]).