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.
As this project is retired, we do not plan to release a version that fixes this
issue. Users are recommended to find an alternative.
Credit:
Ho1aAs <[email protected]> (finder)
References:
https://mina.apache.org/vysper-project/
https://mina.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-115748
