CVE-2026-115748

Apache Vysper: Authorization bypass

Published Oct 26, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apache
Apache vysper
Vendors & Products Apache
Apache vysper
Type Values Removed Values Added
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.
Title Apache Vysper: Authorization bypass
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Nov 2, 2026, 9:22 PM
Reserved
Oct 23, 2026, 12:48 PM
Status
Deferred
Published
Oct 26, 2026, 4:17 PM
Modified
Nov 2, 2026, 10:17 PM
Severity
Important
Public date
Oct 26, 2026, 3:01 PM