---
title: "CVE-2026-115748: Apache Vysper - Authorization Bypass"
description: "Apache Vysper all versions contain an authorization bypass caused by missing authentication check in XEP-0077 In-Band Registration, letting authenticated users compromise other accounts, exploit requires user authentication."
url: https://panop.io/threat-heartbeat/CVE-2026-115748/
---

# CVE-2026-115748 Apache Vysper - Authorization Bypass

Apache Vysper all versions contain an authorization bypass caused by missing authentication check in XEP-0077 In-Band Registration, letting authenticated users compromise other accounts, exploit requires user authentication.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-115748)

## Details

Type

Authorization Bypass

Impact

Broken Access Control

CVSS vector

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

Published

26 October 2026

Updated

27 October 2026

Weakness

[CWE-639](https://cwe.mitre.org/data/definitions/639.html)

## Vendor fix

No fix available; users are recommended to find an alternative.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-115748](https://nvd.nist.gov/vuln/detail/CVE-2026-115748)
- [https://lists.apache.org/thread.html/979n9lzg10vc7tdrrlgy4lh5yrsw8wsj](https://lists.apache.org/thread.html/979n9lzg10vc7tdrrlgy4lh5yrsw8wsj)
- [https://mina.apache.org/vysper-project/](https://mina.apache.org/vysper-project/)
- [http://www.openwall.com/lists/oss-security/2026/10/23/21](http://www.openwall.com/lists/oss-security/2026/10/23/21)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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