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medium advisory

Rex: SSH host key vulnerability (CVE-2026-94140)

Rex versions through 1.16.1 for Perl accept unknown SSH host keys during remote rsync transfers due to a hardcoded StrictHostKeyChecking=no configuration.

CVE search metadata

CVE search record: CVE-2026-94140. KEV: no. Product: Rex (through 1.16.1). Brief: Rex: SSH host key vulnerability (CVE-2026-94140). Brief link: https://feed.craftedsignal.io/briefs/2026-10-rex-ssh-mitm/

Triage facts

Revision 1
Applicability
Rex (through 1.16.1)
Evidence
Unknown
Severity
Medium
Sources
1 public source
Freshness
Revision 1Oct 22, 01:36 UTC
Vulnerabilities
1 CVE
Source quality
A1

Rex versions through 1.16.1 for Perl hardcode 'StrictHostKeyChecking=no', which causes the application to accept unknown SSH host keys when performing remote rsync transfers.