{"id":"AZL-61902","summary":"CVE-2025-4476 affecting package libsoup for versions less than 3.0.4-7","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":"2026-04-21T04:31:52.703524Z","published":"2025-05-16T18:16:10Z","upstream":["CVE-2025-4476"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4476"}],"affected":[{"package":{"name":"libsoup","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/libsoup"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.4-7"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-61902.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L"}]}