CVE-2026-115748

HIGH 8.8CVE-2026-115748 · Published 26/10/2026 · updated 02/11/2026

In short

CVE-2026-115748 is a HIGH (CVSS 8.8) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.61%, higher than 49.8% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

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.

References

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

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