Dashboard / CVE-2026-18654

CVE-2026-18654

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 64/100
Published: 2026-08-03 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
S: X
AT: Present
VC: None
VI: None
VA: None

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
amazon aws_command_line_interface < 1.45.28
amazon aws_command_line_interface 2.0.0 – 2.35.3

References & Advisories (4)

Bug Bounty Relevance

64 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.46%
Raw Score 0.004620
Percentile 40.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00462
2026-10-28
0.00462

Intelligence Sources

nvd ref →

External Links