7.5
HIGH CVSS 3.1
CVE-2026-39835
Invoking server panic during CheckHostKey/Authenticate in golang.org/x/crypto/ssh
Description

SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.

INFO

Published Date :

May 22, 2026, 4:16 a.m.

Last Modified :

July 3, 2026, 1:17 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-39835 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Golang crypto
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Solution
Update SSH servers to prevent panics from crafted certificates.
  • Update SSH server to a version that fixes the CertChecker panic.
  • Ensure IsUserAuthority and IsHostAuthority are properly configured.
Public PoC/Exploit Available at Github

CVE-2026-39835 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-39835 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-39835 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

All Public RunWhen Helm Charts - Managed by terraform

Shell Dockerfile Go Template

Updated: 1 week, 4 days ago
1 stars 1 fork 1 watcher
Born at : Sept. 18, 2023, 10:09 a.m. This repo has been linked 111 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-39835 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-39835 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

    Jul. 03, 2026

    Action Type Old Value New Value
    Changed Affected [{'cpes': ['cpe:/a:redhat:advanced_cluster_security:4.10::el8'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Security for Kubernetes 4.10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:advanced_cluster_security:4.9::el8'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Security for Kubernetes 4.9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:assisted_installer:2'], 'vendor': 'Red Hat', 'product': 'Assisted Installer for Red Hat OpenShift Container Platform 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_builds:1'], 'vendor': 'Red Hat', 'product': 'Builds for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cert_manager:1'], 'vendor': 'Red Hat', 'product': 'cert-manager Operator for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:confidential_compute_attestation:1'], 'vendor': 'Red Hat', 'product': 'Confidential Compute Attestation', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:external_secrets_operator:1'], 'vendor': 'Red Hat', 'product': 'External Secrets Operator for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:multicluster_engine'], 'vendor': 'Red Hat', 'product': 'Multicluster Engine for Kubernetes', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_api_data_protection:1'], 'vendor': 'Red Hat', 'product': 'OpenShift API for Data Protection', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:serverless:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Serverless', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:acm:2'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Management for Kubernetes 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:advanced_cluster_security:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Security 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ceph_storage:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Ceph Storage 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:edge_manager:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Edge Manager 1', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:devworkspace'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Workspaces Operator', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:windows_machine_config'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift for Windows Containers', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_gitops:1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift GitOps', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_service_on_aws:1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift on AWS', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:container_native_virtualization:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Virtualization 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:16.2'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 16.2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:18.0'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 18.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:quay:3'], 'vendor': 'Red Hat', 'product': 'Red Hat Quay 3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:trusted_artifact_signer:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Trusted Artifact Signer', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_security_profiles_operator:1'], 'vendor': 'Red Hat', 'product': 'Security Profiles Operator', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:zero_trust_workload_identity_manager:1'], 'vendor': 'Red Hat', 'product': 'Zero Trust Workload Identity Manager', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:zero_trust_workload_identity_manager:0'], 'vendor': 'Red Hat', 'product': 'Zero Trust Workload Identity Manager - Tech Preview', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:17.1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 17.1', 'defaultStatus': 'unaffected'}] [{'cpes': ['cpe:/a:redhat:advanced_cluster_security:4.10::el8'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Security for Kubernetes 4.10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:advanced_cluster_security:4.9::el8'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Security for Kubernetes 4.9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:assisted_installer:2'], 'vendor': 'Red Hat', 'product': 'Assisted Installer for Red Hat OpenShift Container Platform 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_builds:1'], 'vendor': 'Red Hat', 'product': 'Builds for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cert_manager:1'], 'vendor': 'Red Hat', 'product': 'cert-manager Operator for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:confidential_compute_attestation:1'], 'vendor': 'Red Hat', 'product': 'Confidential Compute Attestation', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:external_secrets_operator:1'], 'vendor': 'Red Hat', 'product': 'External Secrets Operator for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:multicluster_engine'], 'vendor': 'Red Hat', 'product': 'Multicluster Engine for Kubernetes', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_api_data_protection:1'], 'vendor': 'Red Hat', 'product': 'OpenShift API for Data Protection', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:serverless:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Serverless', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:acm:2'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Management for Kubernetes 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:advanced_cluster_security:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Security 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ceph_storage:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Ceph Storage 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:edge_manager:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Edge Manager 1', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:devworkspace'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Workspaces Operator', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:windows_machine_config'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift for Windows Containers', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_gitops:1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift GitOps', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_service_on_aws:1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift on AWS', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:container_native_virtualization:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Virtualization 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:16.2'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 16.2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:quay:3'], 'vendor': 'Red Hat', 'product': 'Red Hat Quay 3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:trusted_artifact_signer:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Trusted Artifact Signer', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_security_profiles_operator:1'], 'vendor': 'Red Hat', 'product': 'Security Profiles Operator', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:zero_trust_workload_identity_manager:1'], 'vendor': 'Red Hat', 'product': 'Zero Trust Workload Identity Manager', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:zero_trust_workload_identity_manager:0'], 'vendor': 'Red Hat', 'product': 'Zero Trust Workload Identity Manager - Tech Preview', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:openstack:17.1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 17.1', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:openstack:18.0'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 18.0', 'defaultStatus': 'unaffected'}]
  • CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

    Jul. 01, 2026

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2026:26546
    Added Reference https://access.redhat.com/errata/RHSA-2026:26547
    Changed Affected [{'cpes': ['cpe:/a:redhat:assisted_installer:2'], 'vendor': 'Red Hat', 'product': 'Assisted Installer for Red Hat OpenShift Container Platform 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_builds:1'], 'vendor': 'Red Hat', 'product': 'Builds for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cert_manager:1'], 'vendor': 'Red Hat', 'product': 'cert-manager Operator for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:confidential_compute_attestation:1'], 'vendor': 'Red Hat', 'product': 'Confidential Compute Attestation', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:external_secrets_operator:1'], 'vendor': 'Red Hat', 'product': 'External Secrets Operator for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:multicluster_engine'], 'vendor': 'Red Hat', 'product': 'Multicluster Engine for Kubernetes', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_api_data_protection:1'], 'vendor': 'Red Hat', 'product': 'OpenShift API for Data Protection', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:serverless:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Serverless', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:acm:2'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Management for Kubernetes 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:advanced_cluster_security:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Security 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ceph_storage:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Ceph Storage 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:edge_manager:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Edge Manager 1', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:devworkspace'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Workspaces Operator', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:windows_machine_config'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift for Windows Containers', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_gitops:1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift GitOps', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_service_on_aws:1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift on AWS', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:container_native_virtualization:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Virtualization 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:16.2'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 16.2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:18.0'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 18.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:quay:3'], 'vendor': 'Red Hat', 'product': 'Red Hat Quay 3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:trusted_artifact_signer:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Trusted Artifact Signer', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_security_profiles_operator:1'], 'vendor': 'Red Hat', 'product': 'Security Profiles Operator', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:zero_trust_workload_identity_manager:1'], 'vendor': 'Red Hat', 'product': 'Zero Trust Workload Identity Manager', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:zero_trust_workload_identity_manager:0'], 'vendor': 'Red Hat', 'product': 'Zero Trust Workload Identity Manager - Tech Preview', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:17.1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 17.1', 'defaultStatus': 'unaffected'}] [{'cpes': ['cpe:/a:redhat:advanced_cluster_security:4.10::el8'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Security for Kubernetes 4.10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:advanced_cluster_security:4.9::el8'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Security for Kubernetes 4.9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:assisted_installer:2'], 'vendor': 'Red Hat', 'product': 'Assisted Installer for Red Hat OpenShift Container Platform 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_builds:1'], 'vendor': 'Red Hat', 'product': 'Builds for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cert_manager:1'], 'vendor': 'Red Hat', 'product': 'cert-manager Operator for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:confidential_compute_attestation:1'], 'vendor': 'Red Hat', 'product': 'Confidential Compute Attestation', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:external_secrets_operator:1'], 'vendor': 'Red Hat', 'product': 'External Secrets Operator for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:multicluster_engine'], 'vendor': 'Red Hat', 'product': 'Multicluster Engine for Kubernetes', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_api_data_protection:1'], 'vendor': 'Red Hat', 'product': 'OpenShift API for Data Protection', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:serverless:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Serverless', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:acm:2'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Management for Kubernetes 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:advanced_cluster_security:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Security 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ceph_storage:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Ceph Storage 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:edge_manager:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Edge Manager 1', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:devworkspace'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Workspaces Operator', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:windows_machine_config'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift for Windows Containers', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_gitops:1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift GitOps', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_service_on_aws:1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift on AWS', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:container_native_virtualization:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Virtualization 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:16.2'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 16.2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:18.0'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 18.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:quay:3'], 'vendor': 'Red Hat', 'product': 'Red Hat Quay 3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:trusted_artifact_signer:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Trusted Artifact Signer', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_security_profiles_operator:1'], 'vendor': 'Red Hat', 'product': 'Security Profiles Operator', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:zero_trust_workload_identity_manager:1'], 'vendor': 'Red Hat', 'product': 'Zero Trust Workload Identity Manager', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:zero_trust_workload_identity_manager:0'], 'vendor': 'Red Hat', 'product': 'Zero Trust Workload Identity Manager - Tech Preview', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:17.1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 17.1', 'defaultStatus': 'unaffected'}]
  • CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

    Jun. 30, 2026

    Action Type Old Value New Value
    Added Affected [{'cpes': ['cpe:/a:redhat:assisted_installer:2'], 'vendor': 'Red Hat', 'product': 'Assisted Installer for Red Hat OpenShift Container Platform 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_builds:1'], 'vendor': 'Red Hat', 'product': 'Builds for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cert_manager:1'], 'vendor': 'Red Hat', 'product': 'cert-manager Operator for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:confidential_compute_attestation:1'], 'vendor': 'Red Hat', 'product': 'Confidential Compute Attestation', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:cryostat:4'], 'vendor': 'Red Hat', 'product': 'Cryostat 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:external_secrets_operator:1'], 'vendor': 'Red Hat', 'product': 'External Secrets Operator for Red Hat OpenShift', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:multicluster_engine'], 'vendor': 'Red Hat', 'product': 'Multicluster Engine for Kubernetes', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_api_data_protection:1'], 'vendor': 'Red Hat', 'product': 'OpenShift API for Data Protection', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_pipelines:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Pipelines', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:serverless:1'], 'vendor': 'Red Hat', 'product': 'OpenShift Serverless', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:acm:2'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Management for Kubernetes 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:advanced_cluster_security:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Advanced Cluster Security 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ceph_storage:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Ceph Storage 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:edge_manager:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Edge Manager 1', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_ai'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift AI (RHOAI)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_data_foundation:4'], 'vendor': 'Red Hat', 'product': 'Red Hat Openshift Data Foundation 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_devspaces:3'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Spaces', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:devworkspace'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Dev Workspaces Operator', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:windows_machine_config'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift for Windows Containers', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_gitops:1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift GitOps', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_service_on_aws:1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift on AWS', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:container_native_virtualization:4'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Virtualization 4', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:16.2'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 16.2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:18.0'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 18.0', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:quay:3'], 'vendor': 'Red Hat', 'product': 'Red Hat Quay 3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:trusted_artifact_signer:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Trusted Artifact Signer', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift_security_profiles_operator:1'], 'vendor': 'Red Hat', 'product': 'Security Profiles Operator', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:zero_trust_workload_identity_manager:1'], 'vendor': 'Red Hat', 'product': 'Zero Trust Workload Identity Manager', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:zero_trust_workload_identity_manager:0'], 'vendor': 'Red Hat', 'product': 'Zero Trust Workload Identity Manager - Tech Preview', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openstack:17.1'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenStack Platform 17.1', 'defaultStatus': 'unaffected'}]
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-476
    Added Reference https://access.redhat.com/security/cve/CVE-2026-39835
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2480680
    Added Reference https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39835.json
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jun. 17, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-39835', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-05-22T17:44:50.320380Z'}
  • CVE Modified by [email protected]

    Jun. 17, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'golang.org/x/crypto', 'product': 'golang.org/x/crypto/ssh', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '0.52.0', 'versionType': 'semver'}], 'packageName': 'golang.org/x/crypto/ssh', 'collectionURL': 'https://pkg.go.dev', 'defaultStatus': 'unaffected', 'programRoutines': [{'name': 'CertChecker.CheckHostKey'}, {'name': 'CertChecker.Authenticate'}]}]
  • Initial Analysis by [email protected]

    May. 28, 2026

    Action Type Old Value New Value
    Added CWE CWE-295
    Added CPE Configuration OR *cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:* versions up to (excluding) 0.52.0
    Added Reference Type Go Project: https://go.dev/cl/781660 Types: Issue Tracking
    Added Reference Type Go Project: https://go.dev/issue/79563 Types: Issue Tracking
    Added Reference Type Go Project: https://groups.google.com/g/golang-announce/c/a082jnz-LvI Types: Mailing List
    Added Reference Type Go Project: https://pkg.go.dev/vuln/GO-2026-5015 Types: Vendor Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    May. 22, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • New CVE Received by [email protected]

    May. 22, 2026

    Action Type Old Value New Value
    Added Description SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.
    Added Reference https://go.dev/cl/781660
    Added Reference https://go.dev/issue/79563
    Added Reference https://groups.google.com/g/golang-announce/c/a082jnz-LvI
    Added Reference https://pkg.go.dev/vuln/GO-2026-5015
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.