Invoking VerifiedPublicKeyCallback permissions skip enforcement in golang.org/x/crypto/ssh

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Summary

CVECVE-2026-46595
StatePUBLISHED
AssignerGo
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-22 04:16:25 UTC
Updated2026-05-22 04:16:25 UTC
DescriptionPreviously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of callback is passed other than public key, then the source-address validation would be skipped.

Risk And Classification

Primary CVSS: v3.1 10 CRITICAL from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L

EPSS: 0.000400000 probability, percentile 0.122520000 (date 2026-05-27)

Problem Types: CWE-863: Incorrect Authorization | CWE-863 CWE-863 Incorrect Authorization

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Golang.orgxcrypto Golang.org/x/crypto/ssh affected 0.52.0 semver Not specified

References

ReferenceSourceLinkTags
groups.google.com/g/golang-announce/c/a082jnz-LvI [email protected] groups.google.com
go.dev/issue/79570 [email protected] go.dev
go.dev/cl/781642 [email protected] go.dev
pkg.go.dev/vuln/GO-2026-5023 [email protected] pkg.go.dev
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