A similar entry appears in the Wheel of Time Companion confirming the information available in the main story arc.
Author: Kerna Shedrian
Vasha is an Aes Sedai of the Green Ajah. She is young and pretty. She has long black hair and green catlike eyes. She is from Arad Doman. She is bonded to Marlesh. They have a very casual relationship. Gawyn notes that she does not have a great deal of rank among the Aes Sedai there but she does not rank as low as Hattori.
(Reference: The Gathering Storm, Chapter 13)