Detections
Analytics
CVE-2026-66339
medium
Description
A flaw was found in libsoup. After a CONNECT tunnel is established through an HTTP proxy, libsoup incorrectly attaches the Proxy-Authorization header to subsequent HTTPS requests sent through that tunnel to the destination server. This allows the destination server to capture proxy credentials, leading to information disclosure.
References
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-48751