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TI-2026-76018 Aliases CVE-2026-108709GHSA-9qj3-8pcf-3r59

Authentication bypass in Apache Kylin exposes metadata broadcast

Priority MEDIUM 49CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.

Summary

Apache Kylin from 4.0.4 through 5.0.4 contains an authentication bypass (CWE-287) that lets requests skip authentication. The Apache Software Foundation advisory says the impact is mostly on Kylin services directly exposed to the public network, while in-house deployments are mostly not impacted. An unauthenticated remote attacker with network access to an exposed service can gain high confidentiality, integrity and availability impact.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00402 34th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Kylin4.0.4 – 5.0.4—No fix listedCNA
  • Apache Kylin VendorApache Affected 4.0.4 – 5.0.4 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:apache:kylin:*:*:*:*:*:*:*:*——Apache
  • cpe:2.3:a:apache:kylin:*:*:*:*:*:*:*:* Versions — — ·Apache

Remediation

Upgrade Apache Kylin to version 5.0.5, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-18 Threatist record created from CVE-2026-108709
  2. 2026-10-18 Alias added: GHSA-9qj3-8pcf-3r59
  3. 2026-10-20 CVSS score added · CISA ADP
  4. 2026-10-20 Weakness changed · CISA ADP
  5. 2026-10-20 CISA SSVC decision points changed
  6. 2026-10-20 Priority changed: LOW → MEDIUM
  7. 2026-10-21 EPSS moved to the 50th–90th percentile
  8. 2026-10-25 EPSS moved to the below the 50th percentile

References

Advisory 1

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
See all 4053 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences