CVE-2026-39828

6.3 MEDIUM
Published: May 22, 2026 Modified: June 02, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://go.dev/cl/781621
Source: security@golang.org
Issue Tracking
https://go.dev/issue/79562
Source: security@golang.org
Issue Tracking
https://groups.google.com/g/golang-announce/c/a082jnz-LvI
Source: security@golang.org
Mailing List
https://pkg.go.dev/vuln/GO-2026-5014
Source: security@golang.org
Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.3 / 10.0
EPSS (Exploit Probability)
0.2%
7th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

golang