When curl connected to a site via an HTTP proxy with the CONNECT request, the user and password used for the proxy connection was also sent off to the remote server.
{
"CWE": {
"id": "CWE-201",
"desc": "Information Exposure Through Sent Data"
},
"URL": "https://curl.se/docs/CVE-2003-1605.json",
"last_affected": "7.10.6",
"package": "curl",
"www": "https://curl.se/docs/CVE-2003-1605.html",
"affects": "both",
"severity": "High"
}