PT-2026-67492 · Amazon · Aws Cli

CVE-2026-18654

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Published

2026-08-03

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Updated

2026-08-10

CVSS v4.0

6.9

Medium

VectorAV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Amazon AWS CLI versions prior to 1.45.28 Amazon AWS CLI v2 versions prior to 2.35.3
Description Key exchange without entity authentication in the EMR SSH helper commands allows man-in-the-middle attackers to intercept SSH sessions and file transfers by positioning themselves on the network between the client and the EMR cluster endpoint.
Recommendations Upgrade Amazon AWS CLI v1 to version 1.45.28 or later. Upgrade Amazon AWS CLI v2 to version 2.35.3 or later.

Exploit

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-18654
GHSA-HQVF-45JJ-MCCQ
PYSEC-2026-3627

Affected Products

Aws Cli