CVE-2026-108743 Apache Software Foundation CVE debrief

Who should care

Administrators of Kylin services directly exposed to the public network should assess exposure and upgrade to version 5.0.5. In-house Kylin deployments are mostly not impacted, but administrators should verify inventory of Kylin deployments and review compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

CVE-2026-108743 is an OS Command Injection vulnerability in Apache Kylin that primarily impacts services directly exposed to the public network. Users should upgrade to version 5.0.5 to fix the issue.

• Potential for unauthorized command execution
• Need for verification of Kylin deployment exposure
• Priority for upgrading to version 5.0.5

Technical summary

The vulnerability affects Apache Kylin from version 4.0.4 through 5.0.4 and can be exploited through OS Command Injection. This OS Command Injection vulnerability primarily impacts services directly exposed to the public network. Users should upgrade to version 5.0.5 to fix the issue. In-house Kylin deployments are mostly not impacted, but administrators of Kylin services directly exposed to the public network should assess exposure and verify inventory of Kylin deployments. The CVE record and NVD detail page provide information on the vulnerability.

Defensive priority

Upgrade to version 5.0.5 to fix the issue

Recommended defensive actions

• Upgrade to version 5.0.5
• Assess exposure of Kylin services directly exposed to the public network
• Verify inventory of Kylin deployments
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability, but in-house Kylin deployments are mostly not impacted. Administrators of Kylin services directly exposed to the public network should assess exposure and verify inventory of Kylin deployments. The vulnerability can be exploited through OS Command Injection, and users should upgrade to version 5.0.5 to fix the issue.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.