In mOnDone of NotificationConversationInfo.java, there is a possible way to access app notification data of another user due to a logic error in the code. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
https://source.android.com/security/bulletin/2023-12-01
https://android.googlesource.com/platform/frameworks/base/+/d21ffbe8a2eeb2a5e6da7efbb1a0430ba6b022e0