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CVE-2026-39835

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-39835

Severity

5.3

Medium

CVSS V3

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Summary

Invoking server panic during CheckHostKey/Authenticate in golang.org/x/crypto/ssh

Description

SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.

Affected packages

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