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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-18654

Disabled SSH host key verification in Amazon AWS CLI EMR helper commands

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Status
Published
Published
Updated
Assigning organization
AMZN

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

AWS aws-cli

Default version status: unaffected

  • 0 to ≤ 1.45.27affected
  • 0 to ≤ 2.35.2affected

References