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OpenAdvisories
High · 8.8 CVE-2026-115748 EUVD-2026-109916GHSA-whj5-44p4-m2ff

Apache Vysper: Authorization bypass

Published Oct 26, 2026 · Updated Nov 2, 2026 · Assigned by apache

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.

As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative.

Affected products

VendorProductAffectedFixed
Apache Software Foundation Apache Vysper — —

References