In broadcastIntentLockedTraced of BroadcastController.java, there is a possible way to launch arbitrary activities from the background on the paired companion phone due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
https://source.android.com/security/bulletin/wear/2026-03-01
https://source.android.com/docs/security/bulletin/wear/2026/2026-03-01