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.