ShellCodeX vulnerability brief
MEDIUM
Received
CVE-2026-18654
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.
Published 03 Aug 2026, 20:17 UTC
Last modified 03 Aug 2026, 20:17 UTC
01
Attack profile
The conditions required to exploit this vulnerability and its potential impact.
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Not assessed
Confidentiality
Not assessed
Integrity
Not assessed
Availability
Not assessed
02
Affected products
Product applicability statements supplied with the NVD record.
NVD has not published structured affected-product data for this record.
03
Weakness classification
CWE categories help security teams group the underlying software weakness.
04
Source references
External advisories, patches and technical reports attached to this CVE record.
NVD
National Vulnerability Database recordnvd.nist.gov
↗
01
Technical reference
ff89ba41-3aa1-4d27-914a-91399e9639e5
↗
02
Technical reference
ff89ba41-3aa1-4d27-914a-91399e9639e5
↗
03
Technical reference
ff89ba41-3aa1-4d27-914a-91399e9639e5
↗
04
Technical reference
ff89ba41-3aa1-4d27-914a-91399e9639e5
↗