CVE-2026-115748

HIGH 8.8

Apache Vysper: Authorization bypass

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

**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.

CWE	CWE-639
Vendor	apache software foundation
Product	apache vysper
Published	Oct 26, 2026
Last Updated	Oct 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Apache Software Foundation / Apache Vysper

0 ≤ *

References

NVD ↗ CVE.org ↗ EPSS Data ↗

mina.apache.org: https://mina.apache.org/vysper-project/ lists.apache.org: https://lists.apache.org/thread.html/979n9lzg10vc7tdrrlgy4lh5yrsw8wsj openwall.com: http://www.openwall.com/lists/oss-security/2026/10/23/21

Credits

Ho1aAs <[email protected]>