VULNERABILITY INTELLIGENCE

CVE-2026-39828

CVSS score6.3 MEDIUM
EPSS probability0.37%
CISA KEVNot currently listed
Published2026-05-22
Last modified2026-09-11
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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.

Weakness classification

  • nvd@nist.gov: CWE-295
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-281

Primary references