CVE-2026-107608 AWS CVE debrief

Who should care

DevOps teams and developers using aws-cdk-lib should assess exposure and upgrade vulnerable versions. The vulnerability affects aws-cdk-lib versions before 2.267.0 and requires attention to prevent potential unauthorized asset publication. The vulnerability has a medium severity level and requires review of asset bundling output handling for potential exposure.

Why it matters

CVE-2026-107608 is a medium-severity vulnerability in aws-cdk-lib that requires attention from DevOps teams and developers to prevent potential unauthorized asset publication. Upgrade priority is medium.

• Potential unauthorized asset publication
• Required verification of asset bundling output handling
• Need for upgrade to version 2.267.0 or later

Technical summary

The aws-cdk-lib package before version 2.267.0 has an improper link resolution issue in asset bundling output handling. This might allow a context-dependent actor to cause files from the build host to be published as the deployed asset. The vulnerability requires attention from DevOps teams and developers to prevent potential unauthorized asset publication. The issue can be remediated by upgrading to version 2.267.0 or later. The vulnerability has a medium severity level and affects aws-cdk-lib versions before 2.267.0.

Defensive priority

Medium priority for aws-cdk-lib users; verify and upgrade vulnerable versions

Recommended defensive actions

• Verify aws-cdk-lib version is 2.267.0 or later
• Upgrade vulnerable versions to 2.267.0 or later
• Review asset bundling output handling for potential exposure
• 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
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance

Evidence notes

Official CVE and NVD records, AWS source references, and cvelistV5 data support vulnerability details and remediation. The CVE record was published on 2026-10-08T19:36:53.715Z and has not been modified since then. The vulnerability details are based on the provided source corpus and may be subject to change as new information becomes available. The evidence is limited to publicly available data and may not reflect the full scope of the vulnerability.

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.