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CVE-2026-108709— Apache Kylin: Unauthenticated Metadata Broadcast (inside in-house network)

Quick assessment

Affected
Apache Software Foundation Apache Kylin
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Kylin 内部网络中存在认证绕过漏洞。该漏洞主要影响那些直接暴露于公网的 Kylin 服务（此类部署并不常见）；大多数部署在内部网络的 Kylin 实例不受影响。 受影响的 Apache Kylin 版本范围：从 4.0.4 到 5.0.4。 建议用户升级至 5.0.5 版本，该版本已修复此问题。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Apache Kylin 4.0.4≤ 5.0.4 affected
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I. Basic Information for CVE-2026-108709

Vulnerability Information
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Vulnerability Title
Apache Kylin: Unauthenticated Metadata Broadcast (inside in-house network)
Source: CVE Program / CVE List V5
Vulnerability Description
Authentication bypass within in-house network in Apache Kylin. Impact most to the kylin services that are directly exposed to public network, which is not common. In-house kylin deployments are mostly not impacted. This issue affects Apache Kylin: from 4.0.4 through 5.0.4. Users are recommended to upgrade to version 5.0.5, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Kylin 4.0.4 ~ 5.0.4 -

II. Public POCs for CVE-2026-108709

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III. Intelligence Information for CVE-2026-108709

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Mailing List Discussions for CVE-2026-108709 (1)

Same Patch Batch · Apache Software Foundation · 2026-10-16 · 12 CVEs total

CVE-2026-108743 Apache Kylin: spark job OS command injection
CVE-2026-69080 Apache Kylin: Broken Access Control in QuerySQLBlacklistController
CVE-2026-69077 Apache Kylin: JobController allows unauthorized cross-project manipulation
CVE-2026-69076 Apache Kylin: Unauthorized cross-project job discard
CVE-2026-68573 Apache Kylin: Unauthenticated Metastore Cleanup
CVE-2026-68572 Apache Kylin: Unauthorized SQL execution to Spark SQL env
CVE-2026-68571 Apache Kylin: JDBC URL Whitelist Verification Bypass
CVE-2026-64959 Apache Kylin: Missing authentication on certain cache API endpoints
CVE-2026-64610 Apache Kylin: Redis unsafe Java deserialization
CVE-2026-63619 Apache Kylin: Missing authorization and path-confinement on system meta dump
CVE-2026-63618 Apache Kylin: Low-Privilege Config Exposure

IV. Related Vulnerabilities

Same product: Apache Kylin
Same vendor: Apache Software Foundation

V. Comments for CVE-2026-108709

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