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CVE-2026-39828

nvd nist
Published: May 22, 2026Modified: Jul 24, 2026

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary)

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.

Affected (1)

Products: Golang: Crypto
Golang
1 product
Crypto
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Crypto
Before 0.52.0

Related CWEs

CWE-281
Improper Preservation of Permissions
The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.
CWE-295
Improper Certificate Validation
The product does not validate, or incorrectly validates, a certificate.

References (41)

Source: security@golang.org
Issue Tracking
Source: security@golang.org
Issue Tracking
Source: security@golang.org
Mailing List
Source: security@golang.org
Vendor Advisory
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Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Timeline

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