CVE-2026-115748
Apache Vysper: Authorization bypass
**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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Apache Vysper Apache Software Foundation org.apache.vysper:vysper
maven |
≥ 0; ≤ * (affected, maven)
Other versions: unaffected |
CNA: apache |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 8.8 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CNA: apache |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://mina.apache.org/vysper-project/CNA: apache
- https://lists.apache.org/thread.html/979n9lzg10vc7tdrrlgy4lh5yrsw8wsjCNA: apache · vendor-advisory
- http://www.openwall.com/lists/oss-security/2026/10/23/21ADP: CVE
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