CVE-2026-18654: aws command line interface before 1.45.28 (exclusive), from 2.0.0 (inclusive), before 2.35.3 (exclusive); +1 more…

Affected technology

aws command line interface · before 1.45.28 (exclusive)
amazon

aws command line interface · from 2.0.0 (inclusive), before 2.35.3 (exclusive)
amazon

aws-cli · 0 through 1.45.27, 0 through 2.35.2
AWS

Description’s affected range: before 1.45.28 and AWS CLI v2 before 2.35.3 might

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Man-in-the-middle attackers might intercept SSHsessions and file transfers via network positioning between the client and the EMR cluster endpoint. Source advisory’s CVSS 4.0 assessment (base score 6.9/10) rates confidentiality, integrity and availability impact as none.