MEDIUM 6.9 NVD
CVE-2026-18654
Key exchange without entity authentication in the EMR SSH helper commands in Amazon AWS CLI before 1.45.28 and AWS CLI v2 before 2.35.3 might allow man-in-the-m
Key exchange without entity authentication in the EMR SSH helper commands in Amazon AWS CLI before 1.45.28 and AWS CLI v2 before 2.35.3 might allow man-in-the-middle attackers to intercept SSHsessions and file transfers via network positioning between the client and the EMR cluster endpoint.
To remediate this issue, users should upgrade to AWS CLI v1 1.45.28 or later, or AWS CLI v2 2.35.3 or later.
References
- https://aws.amazon.com/security/security-bulletins/2026-071-aws/
- https://github.com/aws/aws-cli/blob/develop/CHANGELOG.rst
- https://github.com/aws/aws-cli/blob/v2/CHANGELOG.rst
- https://github.com/aws/aws-cli/security/advisories/GHSA-hqvf-45jj-mccq
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-08-03 via NVD.
vulnfeed aggregates 9166 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.