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TI-2026-69736 Aliases CVE-2026-107608

Improper link resolution in aws-cdk-lib asset bundling exposes build host files

Priority LOW 29CWE-59Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-59 and the CVSS impact.

Summary

AWS aws-cdk-lib before 2.267.0 contains an improper link resolution flaw (CWE-59) in the asset bundling output handling. The software follows a symbolic link before checking the file, which might allow a context-dependent actor to publish files from the build host as the deployed asset. Exploitation requires user interaction, and the CVSS 4.0 base score is 6.8 (MEDIUM).

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Improper link resolution before file access in the asset bundling output handling in AWS aws-cdk-lib before 2.267.0 might allow a context-dependent actor to cause files from the build host to be published as the deployed asset. To remediate this issue, users should upgrade to version 2.267.0 or later.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00141 3rd percentileScored 2026-11-07
Fix Fixed aws-cdk-lib (AWS): 2.267.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
AWSaws-cdk-libbefore 2.267.02.267.0Patch availableCNA
  • aws-cdk-lib VendorAWS Affected before 2.267.0 Fixed in 2.267.0 Patch available CNA

Remediation

Upgrade aws-cdk-lib to version 2.267.0 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA aws-cdk-lib (AWS) Fixed in 2.267.0

Timeline

  1. 2026-10-09 Threatist record created from CVE-2026-107608

References

Patch 1

Advisory 1

  • TI-2026-23989 crypto: algif_aead - Revert to operating out-of-place KEVCVSS 3.1HIGH 7.8
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2024-18648 Amazon AWS Amplify CLI before 12.10.1 incorrectly configures the role trust policy of IAM… CVSS 3.1CRITICAL 9.8
  • TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
  • TI-2025-03847 Input validation issue in AWS Amplify Studio UI component properties CVSS 4.0CRITICAL 9.0
  • TI-2026-11603 HTTP/2 Stream Parser Confusion Body-Inspection Bypass in Amazon CloudFront with AWS WAF CVSS 4.0HIGH 7.9
See all 383 →

Sources

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