{"id":"CVE-2025-4476","details":"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. Successful exploitation requires tricking a user's client application into connecting to the attacker's malicious server.","modified":"2026-04-16T04:38:34.280827409Z","published":"2025-05-16T18:16:10Z","related":["SUSE-SU-2025:01812-1","SUSE-SU-2025:01817-1","SUSE-SU-2025:20453-1","SUSE-SU-2025:20598-1","SUSE-SU-2026:0469-1","SUSE-SU-2026:0497-1","SUSE-SU-2026:0574-1","SUSE-SU-2026:0703-1","openSUSE-SU-2025:15185-1","openSUSE-SU-2026:10166-1","openSUSE-SU-2026:20354-1"],"references":[{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2366513"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2025-4476"}],"schema_version":"1.7.5"}