CVE-2026-39828Medium· 6.3▾ SunlitWhen 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 succee…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 34.7 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the CISA ADP record, not NVD.
Exploit-prediction probability, daily snapshots since Aug 1.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.4%
6.3 → 8.8
medium → high
8.8 → 6.3
high → medium
6.3 → 8.8
medium → high
8.8 → 6.3
high → medium
6.3 → 8.8
medium → high
8.8 → 6.3
high → medium
Last analysed / modified upstream
0.4% → 0.5%
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.
golang.org/x/crypto/ssh < 0.52.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
golang.org/x/crypto/ssh < 0.52.0Patched in:
golang.org/x/crypto/ssh 0.52.0Source: https://github.com/advisories/GHSA-45gg-vh54-h5m9
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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