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Fencer Vulns
medium 5.3

CVE-2026-46598 json

Invoking pathological inputs can lead to client panic in golang.org/x/crypto/ssh/agent

published 2026-05-22 5 mo ago modified 2026-09-22 48 d ago also EUVD-2026-31402 , GHSA-9m57-25v3-79x9 , GO-2026-5033

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

For certain crafted inputs, a 'ed25519.PrivateKey' was created by casting malformed wire bytes, leading to a panic when used.

Patch / fix

  • go golang.org/x/crypto 0.52.0
  • golang.org/x/crypto golang.org/x/crypto/ssh/agent 0.52.0
  • golang-go.crypto Debian 14 1:0.52.0-1

debian advisories DEBIAN-CVE-2026-46598

  • golang1.27 hummingbird 1 1.27.1-0.1.hum1
  • golang1.27-bin hummingbird 1 1.27.1-0.1.hum1
  • golang1.27-src hummingbird 1 1.27.1-0.1.hum1
  • golang1.27-misc hummingbird 1 1.27.1-0.1.hum1
  • golang1.27-tests hummingbird 1 1.27.1-0.1.hum1
  • golang1.26 hummingbird 1 1.26.8-0.1.hum1
  • golang1.26-bin hummingbird 1 1.26.8-0.1.hum1
  • golang1.26-src hummingbird 1 1.26.8-0.1.hum1

red hat advisories RHSA-2026:66561RHSA-2026:62391

  • distribution SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +8 more 3.1.1-150400.9.41.1
  • containerized-data-importer SLE Module for Containers 15 SP7 1.64.0-150700.9.14.1
  • kubevirt SLE Module for Containers 15 SP7 1.7.4-150700.3.30.1
  • terraform-provider-aws SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.11.0-150200.6.18.1
  • terraform-provider-tls SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.0.0-150200.5.15.1
  • terraform-provider-helm SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 2.9.0-150200.6.23.1
  • terraform-provider-null SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 3.0.0-150200.6.18.1
  • terraform-provider-local SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 2.0.0-150200.6.17.1

suse advisories SUSE-SU-2026:4212-1SUSE-SU-2026:4209-1SUSE-SU-2026:3203-1SUSE-SU-2026:3056-1SUSE-SU-2026:22613-1SUSE-SU-2026:2827-1

  • cloudflared openSUSE Leap 16.0 2026.9.1-bp160.1.1
  • containerized-data-importer1.65 openSUSE Leap 16.0 1.65.0-160000.3.1
  • glab openSUSE Leap 16.0 1.114.0-bp160.1.1
  • kubevirt1.8 openSUSE Leap 16.0 1.8.4-160000.1.1
  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
  • rclone openSUSE Leap 16.0 1.74.4-bp160.1.1
  • cosign openSUSE Leap 16.0 3.1.1-160000.1.1
  • alloy openSUSE Leap 16.0 1.17.0-160000.1.1

opensuse advisories openSUSE-SU-2026:21924-1openSUSE-SU-2026:21824-1openSUSE-SU-2026:21662-1openSUSE-SU-2026:21590-1openSUSE-SU-2026:21483-1openSUSE-SU-2026:21436-1

  • docker-buildx Azure Linux 3.0 0.14.0-15
  • docker-compose Azure Linux 3.0 2.27.0-12
  • packer Azure Linux 3.0 1.9.5-15
  • telegraf Azure Linux 3.0 1.31.0-23

azure linux advisories AZL-87642AZL-87708AZL-88203AZL-88347

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-46598 updated cvss 5.3

golang.org/x/crypto/ssh/agent: golang: golang.org/x/crypto/ssh/agent: Denial of Service via malformed input

  • Red Hat Assisted Installer for Red Hat OpenShift Container Platform 2 assisted/agent-preinstall-image-builder-rhel9 Red Hat Builds for Red Hat OpenShift openshift-builds/openshift-builds-waiters-rhel9, openshift-builds/openshift-builds-webhook-rhel9, openshift-builds/openshift-builds-controller-rhel9, openshift-builds/openshift-builds-git-cloner-rhel9, openshift-builds/openshift-builds-image-bundler-rhel9, openshift-builds/openshift-builds-image-processing-rhel9 Red Hat External Secrets Operator for Red Hat OpenShift external-secrets-operator/external-secrets-rhel9 Red Hat Multicluster Engine for Kubernetes multicluster-engine/cluster-image-set-controller-rhel9 Red Hat OpenShift Pipelines openshift-pipelines-client Red Hat OpenShift Serverless openshift-serverless-clients, openshift-serverless-1/kn-plugin-func-func-util-rhel9
    +8 more products
    Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/volsync-rhel9, rhacm2/multicluster-operators-subscription-rhel9 Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-main-rhel8, advanced-cluster-security/rhacs-roxctl-rhel8, advanced-cluster-security/rhacs-scanner-rhel8, advanced-cluster-security/rhacs-rhel8-operator, advanced-cluster-security/rhacs-scanner-v4-rhel8, advanced-cluster-security/rhacs-scanner-slim-rhel8 Red Hat AI Inference Server rhaiis/vllm-cpu-rhel9, rhaiis/vllm-tpu-rhel9 Red Hat Ceph Storage 9 rhceph/alloy-rhel10 Red Hat Edge Manager 1 flightctl, rhem/flightctl-api-rhel9, rhem/flightctl-api-rhel10, rhem/flightctl-worker-rhel9, rhem/flightctl-worker-rhel10, rhem/flightctl-db-setup-rhel9, +19 more Red Hat Enterprise Linux 8 podman, buildah, podman-tests, buildah-tests, podman-docker, podman-remote, +4 more Red Hat Enterprise Linux 9 podman, buildah, podman-tests, buildah-tests, podman-docker, podman-remote, +3 more Red Hat Enterprise Linux 10 podman, buildah
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Hardened Images golang1.25
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-data-science-pipelines-argo-argoexec-rhel9, rhoai/odh-data-science-pipelines-argo-workflowcontroller-rhel9 Red Hat OpenShift Container Platform 4 cri-o, podman, openshift, microshift, podman-tests, podman-docker, +54 more Red Hat OpenShift Container Platform 5 cri-o, microshift, openshift5/ose-tests-rhel9, openshift5/ose-dpu-cni-rhel9, openshift5/ose-installer-rhel9, openshift5/ose-dpu-daemon-rhel9, +9 more Red Hat OpenShift Dev Workspaces Operator devworkspace/devworkspace-rhel9-operator, devworkspace/devworkspace-project-clone-rhel9 Red Hat OpenShift GitOps openshift-gitops-1/argocd-rhel8, openshift-gitops-1/argocd-rhel9, openshift-gitops-1/gitops-rhel8, openshift-gitops-1/gitops-rhel9, openshift-gitops-1/argocd-agent-rhel8, openshift-gitops-1/argocd-agent-rhel9, +4 more Red Hat OpenShift Virtualization 4 kubevirt
    +5 more products
    Red Hat OpenStack Platform 16.2 rhosp-rhel8/osp-director-agent, rhosp-rhel8/osp-director-operator, rhosp-rhel8/osp-director-operator-bundle Red Hat OpenStack Platform 17.1 rhosp-rhel9/osp-director-agent, rhosp-rhel9/osp-director-operator, rhosp-rhel9/osp-director-operator-bundle Red Hat OpenStack Platform 18.0 rhoso-operators/prometheus-podman-exporter-rhel9 Red Hat Quay 3 quay/quay-builder-rhel8, quay/quay-builder-rhel9 Red Hat Trusted Artifact Signer rhtas/ec-rhel9, rhtas/gitsign-rhel9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Cert Manager support for Red Hat OpenShift release 1.17 cert-manager/cert-manager-operator-rhel9 1791788287, cert-manager/jetstack-cert-manager-rhel9 1791371069, cert-manager/jetstack-cert-manager-acmesolver-rhel9 1791371080
    fixed: vendor fix RHSA-2026:82322
  • Red Hat multicluster engine for Kubernetes 2.11 multicluster-engine/hypershift-addon-rhel9-operator 1786912006
    fixed: vendor fix RHSA-2026:57194
  • Red Hat OpenShift API for Data Protection 1.6 oadp/oadp-velero-rhel9 1784058822
    fixed: vendor fix RHSA-2026:43692
  • Red Hat Hardened Images golang1.26 1.26.8-0.1.hum1, golang1.27 1.27.1-0.1.hum1, golang1.26-bin 1.26.8-0.1.hum1, golang1.26-src 1.26.8-0.1.hum1, golang1.27-bin 1.27.1-0.1.hum1, golang1.27-src 1.27.1-0.1.hum1, +4 more
    fixed: vendor fix RHSA-2026:62391
  • Red Hat Openshift Data Foundation 4.22 odf4/cephcsi-rhel9 1782932114, odf4/odf-cli-rhel9 1783537001, odf4/mcg-core-rhel9 1783536000, odf4/odf-drbd-rhel9 1783537392, odf4/odf-console-rhel9 1783537586, odf4/devicefinder-rhel9 1782932104, +21 more
    fixed: vendor fix RHSA-2026:37387
show 1 more
  • Red Hat multicluster engine for Kubernetes 2.11 multicluster-engine/hive-rhel9 1786947450, multicluster-engine/work-rhel9 1786907276, multicluster-engine/discovery-rhel9 1786911975, multicluster-engine/placement-rhel9 1786911984, multicluster-engine/console-mce-rhel9 1786911977, multicluster-engine/must-gather-rhel9 1786911926, +25 more Red Hat OpenShift API for Data Protection 1.6 oadp/oadp-rhel9-operator 1784059086, oadp/oadp-non-admin-rhel9 1784059055, oadp/oadp-operator-bundle 1784060839, oadp/oadp-mustgather-rhel9 1784058949, oadp/oadp-vmfr-access-rhel9 1784059129, oadp/oadp-cli-binaries-rhel9 1784059134, +13 more Red Hat Openshift Data Foundation 4.22 odf4/mcg-operator-bundle 1783538986, odf4/ocs-operator-bundle 1783539176, odf4/odf-operator-bundle 1783539513, odf4/cephcsi-operator-bundle 1783538908, odf4/odr-hub-operator-bundle 1783539596, odf4/rook-ceph-operator-bundle 1783539714, +10 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
GitHub 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected packages

ecosystem package affected fixed in
go golang.org/x/crypto
<0.52.0
0.52.0

Affected products

  • golang.org/x/crypto golang.org/x/crypto/ssh/agent

Classification

Weakness
  • CWE-129 Improper Validation of Array Index

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.