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CVE-2026-39828 Medium False Positive

ssh: Certificate Restrictions Bypass via PartialSuccessError

This CVE does not affect KrakenD

KrakenD does not implement or expose SSH functionality. The golang.org/x/crypto/ssh package is a transitive dependency but its SSH authentication code paths are never invoked during KrakenD operation. The dependency was upgraded as a precaution.

Addressed through routine dependency maintenance in CE 2.13.6 and EE 2.13.4.

Component

golang.org/x/crypto (SSH)

Disclosed

May 26, 2026

Description

Go’s golang.org/x/crypto/ssh package allows bypass of certificate-based authentication restrictions when a PartialSuccessError is returned with non-nil Permissions. An SSH server implementing custom authentication may inadvertently grant access beyond the certificate’s intended permissions.

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