Invoking pathological inputs can lead to client panic in golang.org/x/crypto/ssh/agent
Priority LOW 30CWE-129Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Partial Red Hat: 5 fixed, 26 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat.
Summary
For certain crafted inputs, a 'ed25519.PrivateKey' was created by casting malformed wire bytes, leading to a panic when used.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00412 35th percentileScored 2026-11-07
Fix Partial golang.org/x/crypto/ssh/agent (golang.org/x/crypto): 0.52.0golang.org/x/crypto (Go): 0.52.0Red Hat: 7 advisoriesRed Hat: 5 fixed, 26 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Go standard library | golang.org/x/crypto/ssh/agent | before 0.52.0 | 0.52.0 | Patch available | CNA |
| — | golang.org/x/crypto (Go) | before 0.52.0 | 0.52.0 | Patch available | GHSA-9m57-25v3-79x9 |
- golang.org/x/crypto/ssh/agent VendorGo standard library Affected before 0.52.0 Fixed in 0.52.0 Patch available CNA
- golang.org/x/crypto (Go) Vendor— Affected before 0.52.0 Fixed in 0.52.0 Patch available GHSA-9m57-25v3-79x9
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:* | before 0.52.0 | Vulnerable | Go standard library |
- cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:* Versions before 0.52.0 Vulnerable ·Go standard library
Remediation
- Fix · CNA golang.org/x/crypto/ssh/agent (golang.org/x/crypto) Fixed in 0.52.0
- Fix · GHSA-9m57-25v3-79x9 golang.org/x/crypto (Go) Fixed in 0.52.0 Advisory →
Red Hat 7 advisories
- RHSA-2026:82322 Released 2026-10-13 · Red Hat rating Importantcert-manager Operator for Red Hat OpenShift 1.17.2
- Cert Manager support for Red Hat OpenShift release 1.17 registry.redhat.io/cert-manager/cert-manager-operator-rhel9
- RHSA-2026:82304 Released 2026-10-13 · Red Hat rating Importantcert-manager Operator for Red Hat OpenShift 1.17.2
- Cert Manager support for Red Hat OpenShift release 1.17 registry.redhat.io/cert-manager/jetstack-cert-manager-acmesolver-rhel9, registry.redhat.io/cert-manager/jetstack-cert-manager-rhel9
- RHSA-2026:66561 Released 2026-09-11 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images golang1.27-1.27.1-0.1.hum1@aarch64, golang1.27-1.27.1-0.1.hum1@src, golang1.27-1.27.1-0.1.hum1@x86_64 +10
Show 4 more Red Hat advisories
- RHSA-2026:62391 Released 2026-09-02 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images golang1.26-1.26.8-0.1.hum1@aarch64, golang1.26-1.26.8-0.1.hum1@src, golang1.26-1.26.8-0.1.hum1@x86_64 +10
- RHSA-2026:57194 Released 2026-08-19 · Red Hat rating Importantmulticluster engine for Kubernetes v2.11.5 security update
- multicluster engine for Kubernetes 2.11 registry.redhat.io/multicluster-engine/addon-manager-rhel9, registry.redhat.io/multicluster-engine/backplane-rhel9-operator, registry.redhat.io/multicluster-engine/cluster-api-provider-kubevirt-rhel9 +11
- RHSA-2026:43692 Released 2026-07-22 · Red Hat rating ImportantRed Hat OpenShift API for Data Protection
- OpenShift API for Data Protection 1.6 registry.redhat.io/oadp/oadp-velero-rhel9
- RHSA-2026:37387 Released 2026-07-09 · Red Hat rating ImportantRed Hat OpenShift Data Foundation 4.22.0 security, enhancement & bug fix update
- Red Hat Openshift Data Foundation 4.22 registry.redhat.io/odf4/cephcsi-rhel9, registry.redhat.io/odf4/cephcsi-rhel9-operator, registry.redhat.io/odf4/devicefinder-rhel9 +24
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
golang.org/x/crypto/ssh/agent 0.52.0
3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-28715 Invoking key constraints not enforced in golang.org/x/crypto/ssh/agentPriority MEDIUM 48
- TI-2026-28714 Invoking agent constraints dropped when forwarding keys in golang.org/x/crypto/ssh/agentPriority MEDIUM 48
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Assisted Installer for Red Hat OpenShift Container Platform 2 | Affected | No fix yet: Fix deferred |
| Builds for Red Hat OpenShift | Affected | No fix yet: Fix deferred |
| External Secrets Operator for Red Hat OpenShift | Affected | No fix yet: Fix deferred |
| Multicluster Engine for Kubernetes | Affected | No fix yet: Fix deferred |
| OpenShift Pipelines | Affected | No fix yet: Fix deferred |
| OpenShift Serverless | Affected | No fix yet: Fix deferred |
| Red Hat AI Inference Server | Affected | No fix yet: Fix deferred |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet: Fix deferred |
| Red Hat Advanced Cluster Security 4 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 9 | Affected | No fix yet: Fix deferred |
| Red Hat Edge Manager 1 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat Hardened Images | Affected | No fix planned: Will not fix |
| Red Hat OpenShift AI (RHOAI) | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Dev Workspaces Operator | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift GitOps | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Virtualization 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenStack Platform 16.2 | Affected | No fix yet: Fix deferred |
| Red Hat OpenStack Platform 17.1 | Affected | No fix yet: Fix deferred |
| Red Hat OpenStack Platform 18.0 | Affected | No fix yet: Fix deferred |
| Red Hat Quay 3 | Affected | No fix yet: Fix deferred |
| Red Hat Trusted Artifact Signer | Affected | No fix yet: Fix deferred |
| Cert Manager support for Red Hat OpenShift release 1.17 | Fixed | RHSA-2026:82304, RHSA-2026:82322 |
| OpenShift API for Data Protection 1.6 | Fixed | RHSA-2026:43692 |
| Red Hat Hardened Images | Fixed | RHSA-2026:62391, RHSA-2026:66561 |
| Red Hat Openshift Data Foundation 4.22 | Fixed | RHSA-2026:37387 |
| multicluster engine for Kubernetes 2.11 | Fixed | RHSA-2026:57194 |
Not affected: 3 products
- OpenShift API for Data Protection 1.6
- Red Hat Openshift Data Foundation 4.22
- multicluster engine for Kubernetes 2.11
Timeline
- 2026-10-02 Threatist record created from CVE-2026-46598
- 2026-10-03 Alias added: GHSA-9m57-25v3-79x9
- 2026-10-14 Fix available: RHSA-2026:82304 · Red Hat
- 2026-10-14 Fix available: RHSA-2026:82322 · Red Hat
- 2026-10-15 Fix available: Cert Manager support for Red Hat OpenShift release 1.17 · Red Hat
- 2026-10-30 Affected versions changed · Red Hat
References
More Go standard library Crypto vulnerabilities
- TI-2023-26623 The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6… CVSS 3.1MEDIUM 5.9
- TI-2026-30791 Invoking auth bypass via unenforced @revoked status in golang.org/x/crypto/ssh/knownhosts CVSS 3.1CRITICAL 9.1
- TI-2026-34255 Invoking VerifiedPublicKeyCallback permissions skip enforcement in golang.org/x/crypto/ssh CVSS 3.1CRITICAL 10.0
- TI-2026-28715 Invoking key constraints not enforced in golang.org/x/crypto/ssh/agent CVSS 3.1CRITICAL 9.1
- TI-2026-28714 Invoking agent constraints dropped when forwarding keys in golang.org/x/crypto/ssh/agent CVSS 3.1CRITICAL 9.1
- TI-2026-28713 Invoking bypass of FIDO/U2F security keys physical interaction in golang.org/x/crypto/ssh CVSS 3.1CRITICAL 9.1
Sources
- CVE-2026-46598 · CVE Program
- CVE-2026-46598 · NVD
- FIRST EPSS
- GHSA-9m57-25v3-79x9 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-46598 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences