CVE•Published 2026-08-03•Modified 2026-10-23•0 articles on news•4 live references•NVD data

CVE-2026-18654Amazon · Aws_command_line_interface

Vulnerability data via NVD (ingested)

CVSS v3.1

6.8

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS percentile

Exploit Prediction Scoring System · top 80% of all CVEs

Weaknesses (CWE)

CWE-322Key Exchange without Entity Authentication

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.

Timeline

Published 2026-08-03

Modified 2026-10-23

External references

NVD MITRE GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-18654

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Amazon Aws Command Line Interface"

All exposed Amazon Aws Command Line Interface instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Aws Command Line Interface"

HTTP body or banner mentions "Aws Command Line Interface" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-18654