Auth Bypass in golang.org/x/crypto/ssh <0.52.0
CVE-2026-46595 Published on May 22, 2026

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

NVD

Vulnerability Analysis

CVE-2026-46595 can be exploited with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and a small impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
LOW

Weakness Types

What is an AuthZ Vulnerability?

The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

CVE-2026-46595 has been classified to as an AuthZ vulnerability or weakness.

Incorrect Implementation of Authentication Algorithm

The requirements for the software dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect. This incorrect implementation may allow authentication to be bypassed.


Products Associated with CVE-2026-46595

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-46595 are published in these products:

Canonical Ubuntu Linux
 
Red Hat Acm
 
Red Hat Advanced Cluster Security
 
Red Hat Hummingbird
 
Red Hat Multicluster Engine
 
Red Hat Assisted Installer
 
Red Hat Openshift Builds
 
Red Hat Cert Manager
 
Red Hat Confidential Compute Attestation
 
Red Hat Cryostat
 
Red Hat External Secrets Operator
 
Red Hat Openshift Api Data Protection
 
Red Hat Openshift Pipelines
 
Red Hat Serverless
 
Red Hat Ceph Storage
 
Red Hat Edge Manager
 
Red Hat Enterprise Linux (RHEL)
 
Red Hat Enterprise Linux Ai
 
Red Hat Openshift Ai
 
Red Hat Openshift
 
Red Hat Openshift Devspaces
 
Red Hat Devworkspace
 
Red Hat Windows Machine Config
 
Red Hat Openshift Gitops
 
Red Hat Openshift Service On Aws
 
Red Hat Container Native Virtualization
 
Red Hat Openstack
 
Red Hat Quay
 
Red Hat Trusted Artifact Signer
 
Red Hat Openshift Security Profiles Operator
 
Red Hat Zero Trust Workload Identity Manager
 
Red Hat Openshift Data Foundation
 

Affected Versions

golang.org/x/crypto/ssh: Red Hat Cryostat 4 on RHEL 9: Red Hat RHEM 1.0 for RHEL 9: Red Hat RHEM 1.1 for RHEL 10: Red Hat RHEM 1.1 for RHEL 9: Red Hat DevWorkspace Operator 0.42: Red Hat multicluster engine for Kubernetes 2.8: Red Hat multicluster engine for Kubernetes 2.8: Red Hat multicluster engine for Kubernetes 2.8: Red Hat multicluster engine for Kubernetes 2.8: Red Hat multicluster engine for Kubernetes 2.8: Red Hat multicluster engine for Kubernetes 2.8: Red Hat OpenShift API for Data Protection 1.6: Red Hat Advanced Cluster Management for Kubernetes 2.13: Red Hat Advanced Cluster Management for Kubernetes 2.13: Red Hat Advanced Cluster Management for Kubernetes 2.13: Red Hat Advanced Cluster Management for Kubernetes 2.13: Red Hat Advanced Cluster Management for Kubernetes 2.13: Red Hat Advanced Cluster Security 4.9: Red Hat Advanced Cluster Security for Kubernetes 4.10: Red Hat Advanced Cluster Security for Kubernetes 4.11: Red Hat Edge Manager 1.0: Red Hat Edge Manager 1.1: Red Hat Edge Manager 1.1: Red Hat Enterprise Linux AI 3.4: Red Hat Enterprise Linux AI 3.4: Red Hat Enterprise Linux AI 3.4: Red Hat Enterprise Linux AI 3.4: Red Hat Enterprise Linux AI 3.4: Red Hat Enterprise Linux AI 3.4: Red Hat Enterprise Linux AI 3.4: Red Hat Hardened Images: Red Hat Hardened Images: Red Hat OpenShift AI 3.3: Red Hat OpenShift Builds 1.7.3: Red Hat OpenShift Builds 1.8.1: Red Hat OpenShift Builds 1.8.1: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat Openshift Data Foundation 4.22: Red Hat OpenShift Dev Spaces 3.29: Red Hat Quay 3.15: Red Hat Trusted Artifact Signer 1.4: Assisted Installer for Red Hat OpenShift Container Platform 2: cert-manager Operator for Red Hat OpenShift: Red Hat Confidential Compute Attestation: External Secrets Operator for Red Hat OpenShift: Red Hat Multicluster Engine for Kubernetes: Red Hat Multicluster Engine for Kubernetes: Red Hat Multicluster Engine for Kubernetes: Red Hat Multicluster Engine for Kubernetes: Red Hat Multicluster Engine for Kubernetes: Red Hat Multicluster Engine for Kubernetes: Red Hat Multicluster Engine for Kubernetes: Red Hat OpenShift Pipelines: Red Hat OpenShift Serverless: Red Hat OpenShift Serverless: Red Hat Advanced Cluster Management for Kubernetes 2: Red Hat Advanced Cluster Management for Kubernetes 2: Red Hat Advanced Cluster Management for Kubernetes 2: Red Hat Advanced Cluster Management for Kubernetes 2: Red Hat Ceph Storage 9: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux AI (RHEL AI) 3: Red Hat OpenShift AI (RHOAI): Red Hat OpenShift AI (RHOAI): Red Hat OpenShift AI (RHOAI): Red Hat OpenShift AI (RHOAI): Red Hat OpenShift Container Platform 4: Red Hat OpenShift Container Platform 4: Red Hat OpenShift Container Platform 4: Red Hat OpenShift Container Platform 4: Red Hat OpenShift Container Platform 4: Red Hat OpenShift Container Platform 4: Red Hat OpenShift Container Platform 4: Red Hat OpenShift Container Platform 4: Red Hat OpenShift Container Platform 4: Red Hat OpenShift Container Platform 4: Red Hat OpenShift Container Platform 4: Red Hat OpenShift for Windows Containers: Red Hat OpenShift GitOps: Red Hat OpenShift GitOps: Red Hat OpenShift on AWS: Red Hat OpenShift Virtualization 4: Red Hat OpenStack Platform 16.2: Red Hat OpenStack Platform 16.2: Red Hat OpenStack Platform 17.1: Red Hat OpenStack Platform 18.0: Red Hat Quay 3: Red Hat Security Profiles Operator: Red Hat Zero Trust Workload Identity Manager: Red Hat Zero Trust Workload Identity Manager - Tech Preview:

Exploit Probability

EPSS
0.50%
Percentile
40.13%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.