Just decided that the same problem. We are working with a cookie with a fixed length. For some reason, CF10 does not display an individual cookie value, so we grabbed a line of all cookies, then searched by where the cookie value started, and retrieved the value. (Sanjeev credit for starting me in the right direction)
<cfset allcookies = GetHttpRequestData().headers.cookie> <cfset yourCookie = Find("sampleSting", allcookies) > <cfset yourVariable = MID(allcookies,(sampleString+7),6)>
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