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CVE-2026-42189

🗓️ 11 May 2026 20:25:44Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 2 Views

Russh keyboard-interactive server can crash pre authentication with a malformed packet; no credentials needed; fixed in version 0.60.1.

Related
Refs
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Family
ATTACKERKB
CVE-2026-42189
8 May 202619:49
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Chainguard
CVE-2026-42189 vulnerabilities
14 May 202601:18
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CVE-2026-42189
20 Apr 202616:05
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CNNVD
Russh 安全漏洞
8 May 202600:00
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CVE
CVE-2026-42189
8 May 202619:49
cve
Cvelist
CVE-2026-42189 Russh: Pre-auth DoS via unbounded allocation in keyboard-interactive auth
8 May 202619:49
cvelist
EUVD
EUVD-2026-28822
8 May 202619:49
euvd
Github Security Blog
russh has pre-auth DoS via unbounded allocation in its keyboard-interactive auth handler
24 Apr 202615:39
github
NVD
CVE-2026-42189
8 May 202620:16
nvd
OSV
CGA-V8MF-JM25-J44R
14 May 202602:31
osv
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11 May 2026 20:25Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.5
EPSS0.00201
SSVC
2