CVE-2026-23904

Apache Kyuubi: Unrestricted access via Kyuubi engine-ui proxy

Published Jul 29, 2026 CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apache
Apache kyuubi
Vendors & Products Apache
Apache kyuubi
Type Values Removed Values Added
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.
Title Apache Kyuubi: Unrestricted access via Kyuubi engine-ui proxy
Weaknesses CWE-923
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Jul 29, 2026, 2:00 PM
Reserved
Jan 19, 2026, 3:40 AM
Status
Analyzed
Published
Jul 29, 2026, 10:16 AM
Modified
Oct 23, 2026, 11:10 PM