CVE-2026-115721 Details
Description
**UNSUPPORTED WHEN ASSIGNED** Unbounded allocation in XML parsing in Apache Vysper; all versions, may lead to an out of memory condition. This issue affects all versions of Apache Vysper. Apache Vysper is an XMPP (Jabber) server library. As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative.
A vulnerability exists in all versions of Apache Vysper, an XMPP server library, due to unbounded memory allocation during XML parsing. This flaw can lead to out-of-memory conditions. As Apache Vysper is a retired project, no fix will be released, and users are advised to seek alternatives.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 26, 2026CISA-ADP
Assessed Nov 2, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/10/23/20 | CVE | AdvisoryMailing List |
| https://lists.apache.org/thread.html/d0bx15hjcs69gktk9tt25vgvk121c9vm | [email protected] | AdvisoryMailing ListVendor |
| https://mina.apache.org/vysper-project/ | [email protected] | ProductVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-770 | Allocation of Resources Without Limits or Throttling | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Apache Vysper | < 0.1.0 (semver) |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 2, 2026 | CVE Modified | CISA-ADP |
| Oct 26, 2026 | New CVE Received | [email protected] |
| Oct 26, 2026 | CVE Modified | CVE |