{"schemaVersion":3,"id":"CVE-2026-77711","aliases":["DEBIAN-CVE-2026-77711","UBUNTU-CVE-2026-77711"],"status":"published","duplicateOf":null,"title":null,"description":"When Jetty's `HttpClient` make a request to a server through a forward proxy, the server may reply with a 407 (Proxy Authentication Required).\n\n\n\nThe client mistakenly interprets the 407 as coming from the proxy, so it re-sends the request with the `Proxy-Authentication` header, which arrives to the server, that now has access to the proxy 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of Sensitive Information to an Unauthorized Actor","description":"The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/200.html"}],"affected":[{"vendor":"debian","product":"jetty12","name":"jetty12","label":"jetty12","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/jetty12","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"debian","product":"jetty9","name":"jetty9","label":"jetty9","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/jetty9","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix 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