cURL and libcurl 7.10.6 through 7.41.0 does not properly re-use authenticated Negotiate connections, which allows remote attackers to connect as other users via a request. (CVE-2015-3148)
support.f5.com/kb/en-us/solutions/public/0000/100/sol167.html
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support.f5.com/kb/en-us/solutions/public/9000/900/sol9957.html
support.f5.com/kb/en-us/solutions/public/9000/900/sol9970.html