CVEvulnerability

CVE-2026-18654

6.9 MEDIUM Published 2026-08-03 Modified 2026-10-23 Official page ↗
Status
Analyzed
Published
2026-08-03
Last modified
2026-10-23
Assigner
ff89ba41-3aa1-4d27-914a-91399e9639e5
CVSS 4.0 (ff89ba41-3aa1-4d27-914a-91399e9639e5)
6.9 MEDIUM — 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
CVSS 3.1 (ff89ba41-3aa1-4d27-914a-91399e9639e5)
6.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Weaknesses
CWE-322

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.

Affected configurations

• amazon aws command line interface (< 1.45.28) • amazon aws command line interface (>= 2.0.0 < 2.35.3)

Related

Weakness · CWE (1)

  • CWE-322 Key Exchange without Entity Authentication weakness

References