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Fencer Intel
medium 5.8

CVE-2025-13281 json

Portworx Half-Blind SSRF in kube-controller-manager

published 10mo ago modified 26d ago also EUVD-2025-203310 , GHSA-r6j8-c6r2-37rr , GO-2025-4240

cvss
5.8
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 33%
public exploits
0
none known

Summary

A half-blind Server Side Request Forgery (SSRF) vulnerability exists in kube-controller-manager when using the in-tree Portworx StorageClass. This vulnerability allows authorized users to leak arbitrary information from unprotected endpoints in the control plane’s host network (including link-local or loopback services).

Patch / fix

  • go k8s.io/kubernetes 1.32.10, 1.33.6, 1.34.2
  • kubernetes kubernetes 1.32.10, 1.33.6, 1.34.2
  • kubernetes Debian 14, Debian 13, Debian 12 1.20.5+really1.20.2-1

debian advisories DEBIAN-CVE-2025-13281

  • govulncheck-vulndb openSUSE Leap 15.6 0.0.20251230T014957-150000.1.134.1

suse advisories SUSE-SU-2026:0037-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1

opensuse advisories openSUSE-SU-2026:21483-1

  • kubernetes Azure Linux 3.0 1.30.10-18
  • kubernetes CBL-Mariner 2.0 1.28.4-21

azure linux advisories AZL-72382AZL-72386

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

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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-2025-13281 updated cvss 5.8

kube-controller-manager: Portworx Half-Blind SSRF in kube-controller-manager

  • Red Hat Builds for Red Hat OpenShift openshift-builds/openshift-builds-shared-resource-rhel9, openshift-builds/openshift-builds-shared-resource-webhook-rhel9 Red Hat cert-manager Operator for Red Hat OpenShift cert-manager/cert-manager-operator-rhel9 Red Hat External Secrets Operator for Red Hat OpenShift external-secrets-operator/external-secrets-rhel9, external-secrets-operator/bitwarden-sdk-server-rhel9, external-secrets-operator/external-secrets-operator-rhel9, external-secrets-operator/external-secrets-operator-bundle Red Hat external secrets operator for Red Hat OpenShift - Tech Preview external-secrets-operator/external-secrets-rhel9, external-secrets-operator/bitwarden-sdk-server-rhel9, external-secrets-operator/external-secrets-operator-rhel9, external-secrets-operator/external-secrets-operator-bundle Red Hat Logical Volume Manager Storage lvms4/lvms-rhel9-operator, lvms4/lvms-operator-bundle, lvms4/lvms-must-gather-rhel9 Red Hat Multicluster Engine for Kubernetes multicluster-engine/cluster-curator-controller-rhel9
    +9 more products
    Red Hat Advanced Cluster Management for Kubernetes 2 flightctl, flightctl-agent, flightctl-selinux Red Hat Ansible Automation Platform 2 flightctl Red Hat Edge Manager preview flightctl, rhem/flightctl-ui-rhel9, rhem/flightctl-api-rhel9, rhem/flightctl-ui-ocp-rhel9, rhem/flightctl-worker-rhel9, rhem/flightctl-db-setup-rhel9, +6 more Red Hat OpenShift Container Platform 4 openshift, microshift, microshift-olm, microshift-sriov, microshift-multus, openshift-clients, +79 more Red Hat Openshift Data Foundation 4 odf4/cephcsi-rhel9 Red Hat OpenShift for Windows Containers openshift4-wincw/windows-machine-config-rhel9-operator, openshift4-wincw/windows-machine-config-operator-bundle Red Hat OpenShift GitOps openshift-gitops-1/dex-rhel8, openshift-gitops-1/argocd-rhel8, openshift-gitops-1/argocd-rhel9, openshift-gitops-1/gitops-rhel8, openshift-gitops-1/must-gather-rhel8, openshift-gitops-1/argocd-agent-rhel8, +5 more Red Hat OpenStack Platform 16.2 rhosp-rhel8/osp-director-agent, rhosp-rhel8/osp-director-operator, rhosp-rhel8/osp-director-downloader, 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-downloader, rhosp-rhel9/osp-director-operator-bundle
    affected: workaround, no fix available “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.”

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
no
Technical impact
partial
Assessed
10mo ago

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.8 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
GitHub 3.1 5.8 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
go k8s.io/kubernetes
<1.32.10
>=1.33.0-alpha.0, <1.33.6
>=1.34.0-alpha.0, <1.34.2
1.32.10
1.33.6
1.34.2

Affected products

  • Kubernetes Kubernetes

Classification

Weakness
  • CWE-918 Server-Side Request Forgery
Technology feeds

References

Sources

Fencer Intel 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.