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CVE Vulnerability Details :
CVE-2026-39828
PUBLISHED
More InfoOfficial Page
Assigner-Go
Assigner Org ID-1bb62c36-49e3-4200-9d77-64a1400537cc
View Known Exploited Vulnerability (KEV) details
Published At-22 May, 2026 | 02:31
Updated At-22 May, 2026 | 17:44
Rejected At-
▼CVE Numbering Authority (CNA)
Invoking bypass of certificate restrictions in golang.org/x/crypto/ssh

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 Products
Vendor
golang.org/x/crypto
Product
golang.org/x/crypto/ssh
Collection URL
https://pkg.go.dev
Package Name
golang.org/x/crypto/ssh
Program Routines
  • connection.serverAuthenticate
  • NewServerConn
Default Status
unaffected
Versions
Affected
  • From 0 before 0.52.0 (semver)
Problem Types
TypeCWE IDDescription
N/AN/ACWE-863: Incorrect Authorization
Type: N/A
CWE ID: N/A
Description: CWE-863: Incorrect Authorization
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
NCC Group Cryptography Services, sponsored by Teleport
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://go.dev/issue/79562
N/A
https://groups.google.com/g/golang-announce/c/a082jnz-LvI
N/A
https://go.dev/cl/781621
N/A
https://pkg.go.dev/vuln/GO-2026-5014
N/A
Hyperlink: https://go.dev/issue/79562
Resource: N/A
Hyperlink: https://groups.google.com/g/golang-announce/c/a082jnz-LvI
Resource: N/A
Hyperlink: https://go.dev/cl/781621
Resource: N/A
Hyperlink: https://pkg.go.dev/vuln/GO-2026-5014
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.16.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Version: 3.1
Base score: 6.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found