blabbermouthed

adj.	1.	tending to talk excessively.
	2.	prone to revealing secrets; - of people.

Adj.	1.	blabbermouthed - unwisely talking too much Synonyms: bigmouthed, blabby, talkative
	2.	blabbermouthed - prone to communicate confidential information Synonyms: talebearing, tattling, leaky

bigmouthed, blabby, indiscreet, talkative