{"schemaVersion":3,"id":"CVE-2025-4476","aliases":["SUSE-SU-2026:0469-1","UBUNTU-CVE-2025-4476","DEBIAN-CVE-2025-4476"],"status":"published","duplicateOf":null,"title":null,"description":"A denial-of-service vulnerability has been identified in the libsoup HTTP client library. This flaw can be triggered when a libsoup client receives a 401 (Unauthorized) HTTP response containing a specifically crafted domain parameter within the WWW-Authenticate header. Processing this malformed header can lead to a crash of the client application using libsoup. An attacker could exploit this by setting up a malicious HTTP server. If a user's application using the vulnerable libsoup library connects to this malicious server, it could result in a denial-of-service. 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