CVE-2026-115748: Apache Vysper: Authorization bypass

Posted by Thomas Wolf on Oct 23 Severity: important CVSS 3.1: 8.8 (high) CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Affected versions: - Apache Vysper: all versions Description: **UNSUPPORTED WHEN ASSIGNED** Authorization bypass in Apache Vysper, all versions. Apache Vysper is an XMPP (Jabber) server library. Its XEP-0077 (In-Band Registration) implementation is missing an authentication check, allowing any authenticated user to compromise other accounts.

Published 23-Oct-2026 17:33 UTC · First seen 23-Oct-2026 17:32 UTC

Sources

• Open Source Security · 23-Oct-2026