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CVE-2026-39828

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CVE-2026-39828

Published: May 22, 2026

Modified: May 22, 2026

PUBLISHED

Description

When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil Permissions with PartialSuccessError now results in a connection error.

VendorProductVersions

golang.org/x/crypto

golang.org/x/crypto/ssh

affected
0 - < 0.52.0

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CVE-2026-39828 - Security Vulnerability | QwikSec