CVE-2026-23904

HIGH

Apache Kyuubi: Unrestricted access via Kyuubi engine-ui proxy

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-23904 has a selected CVSS score of 7.3 (high).

Description

Kyuubi Engine UI proxy accepts a host and port from the request path and proxies HTTP requests to that destination. A remote requester with network access to the proxy can cause the Kyuubi server to send HTTP requests to arbitrary reachable hosts, resulting in SSRF or open-proxy behavior. This issue affects Apache Kyuubi: from 1.8.0 before 1.12.0. Users are recommended to upgrade to version 1.12.0, which disables the proxy by default. To restore proxied Engine UI, set kyuubi.frontend.rest.engine.ui.proxy.enabled=true and configure allowed target hosts with kyuubi.frontend.rest.engine.ui.proxy.hosts.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableYes
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Jul 29, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Apache Kyuubi

Browse Apache Software Foundation / Apache Kyuubiorg.apache.kyuubi:kyuubi-server

Default status: unaffected

CVE List1.8.0 to < 1.12.0affected

References

4