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CVE-2026-18654 Disabled SSH host key verification in Amazon AWS CLI EMR helper commands

🗓️ 03 Aug 2026 19:38:51Reported by AMZNType 
cvelist
 cvelist
🔗 www.cve.org👁 51 Views

MITM risk in EMR SSH from disabled host key verification; upgrade AWS CLI.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-18654
3 Aug 202619:38
attackerkb
cgr
Chainguard
CVE-2026-18654 vulnerabilities
15 Aug 202608:28
cgr
circl
Circl
CVE-2026-18654
6 Aug 202612:15
circl
cve
CVE
CVE-2026-18654
3 Aug 202619:38
cve
euvd
EUVD
EUVD-2026-52415
6 Aug 202620:15
euvd
github
Github Security Blog
AWS CLI: Disabled SSH host key verification in Amazon AWS CLI EMR helper commands
6 Aug 202620:15
github
nvd
NVD
CVE-2026-18654
3 Aug 202620:17
nvd
osv
OSV
CGA-P48R-WJ7X-P8HX
15 Aug 202600:52
osv
osv
OSV
GHSA-HQVF-45JJ-MCCQ AWS CLI: Disabled SSH host key verification in Amazon AWS CLI EMR helper commands
6 Aug 202620:15
osv
osv
OSV
MINI-3XHR-75W2-P922
7 Aug 202613:47
osv
Rows per page
[
  {
    "vendor": "AWS",
    "product": "aws-cli",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThanOrEqual": "1.45.27",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "0",
        "lessThanOrEqual": "2.35.2",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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03 Aug 2026 19:40Current
CVSS 3.16.8
CVSS 46.9
EPSS0.0029
51