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Vulnerabilities

Vulnerability · CVE-2026-108709

Authentication bypass within in-house network in Apache Kylin.

Published Oct 16, 2026 · catalog updated Oct 20, 2026 · Authentication bypass within in-house

Open the advisory

Exploitation likelihood is not on this record for CVE-2026-108709. A missing EPSS score is not a low risk. Compare Authentication bypass within in-house with the linked advisory before you change production.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Authentication bypass within in-house).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Advisory link
Affected products
See sources for product scope

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.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-108709

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for CVE-2026-108709. A missing EPSS score is not a low risk. Compare Authentication bypass within in-house with the linked advisory before you change production.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-287: Improper Authentication. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 16, 2026 · NIST NVD

    Detected

    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.

  2. Oct 20, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-108709

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-108709

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 20, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.