{"id":"CVE-2026-3099","details":"A flaw was found in Libsoup. The server-side digest authentication implementation in the SoupAuthDomainDigest class does not properly track issued nonces or enforce the required incrementing nonce-count (nc) attribute. This vulnerability allows a remote attacker to capture a single valid authentication header and replay it repeatedly. Consequently, the attacker can bypass authentication and gain unauthorized access to protected resources, impersonating the legitimate user.","modified":"2026-03-14T15:05:54.905664Z","published":"2026-03-12T14:16:18.760Z","references":[{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-3099"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2442232"},{"type":"REPORT","url":"https://gitlab.gnome.org/GNOME/libsoup/-/issues/495"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3099.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L"}]}