--- id: CVE-2026-114406 title: >- Ca-certificates: distrust emudhra intermediate ca certificates due to security concerns summary: >- The system certificate authority (CA) store in Red Hat products, distributed via ca-certificates RPM packages, included multiple root CA certificates of authorities, which signed intermediate CA certificates with weak private keys issued… severity: medium cvss: 6.8 cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N' cvssSource: cna cwe: - CWE-295 vendor: Red Hat product: assisted/agent-preinstall-image-builder-rhel9 affected: - assisted/agent-preinstall-image-builder-rhel9 (all versions) - cert-manager/cert-manager-istio-csr-rhel9 (all versions) - agent-sandbox/agent-sandbox-rhel9-operator (all versions) - kmm/kernel-module-management-hub-rhel9-operator (all versions) - kube-descheduler-operator/descheduler-rhel9 (all versions) - openshift-logging/cluster-logging-rhel9-operator (all versions) - lvms4/lvms-must-gather-rhel8 (all versions) - lvms4/lvms-must-gather-rhel9 (all versions) - ca-certificates (all versions) - mta/mta-analyzer-addon-rhel9 (all versions) - rhmtc/openshift-migration-controller-rhel8 (all versions) - migration-toolkit-virtualization/mtv-api-rhel9 (all versions) - multicluster-engine/addon-manager-rhel9 (all versions) - network-observability/network-observability-cli-rhel9 (all versions) - openshift-serverless-1/kn-backstage-plugins-eventmesh-rhel9 (all versions) - openshift-serverless-1/logic-data-index-ephemeral-rhel9 (all versions) - openshift-service-mesh-dev-preview-beta/istio-ztunnel-rhel9 (all versions) - openshift-service-mesh/istio-cni-rhel9 (all versions) - openshift-service-mesh-tech-preview/istio-ztunnel-rhel9 (all versions) - rhacm2/acm-cli-rhel9 (all versions) - rhacm2/acm-cluster-permission-rhel9 (all versions) - advanced-cluster-security/rhacs-central-db-rhel8 (all versions) - advanced-cluster-security/rhacs-central-db-rhel9 (all versions) - ca-certificates (all versions) - rhcl-1/authorino-rhel9 (all versions) - ca-certificates (all versions) - ca-certificates (all versions) - ca-certificates (all versions) - ca-certificates (all versions) - ca-certificates (all versions) - ca-certificates (all versions) - openshift/ose-rhel-coreos-8 (all versions) - openshift/ose-rhel-coreos-9 (all versions) - rhosdt/opentelemetry-collector-rhel9 (all versions) - ca-certificates (all versions) - openshift4-wincw/windows-machine-config-rhel9-operator (all versions) - container-native-virtualization/aaq-controller-rhel9 (all versions) - ca-certificates (all versions) - quay/clair-rhel8 (all versions) - quay/clair-rhel9 (all versions) - mosquitto published: '2026-10-21' updated: '2026-10-21' sourceUpdated: '2026-10-21T20:56:26.866Z' source: CVEORG sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-114406' references: - url: 'https://access.redhat.com/security/cve/CVE-2026-114406' - url: 'https://access.redhat.com/security/vulnerabilities/RHSB-2026-012' label: RHSB-2026-012 - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2556046' label: RHBZ#2556046 tags: - cve.org ingestedAt: '2026-10-21T21:13:32.749Z' --- ## Overview The system certificate authority (CA) store in Red Hat products, distributed via ca-certificates RPM packages, included multiple root CA certificates of authorities, which signed intermediate CA certificates with weak private keys issued by the eMudhra certificate authority. A man-in-the-middle attacker could use this flaw to issue certificates for arbitrary host names signed by the weak intermediate CA certificates, which would be considered trusted by a TLS/SSL client using system CA store and cause such clients to connect to malicious sites. Due to inability to only distrust specific intermediate certificates in all clients using the system CA store, root CA certificates of authorities that signed weak intermediate CA certificates are being removed. ## Affected - `assisted/agent-preinstall-image-builder-rhel9 (all versions)` - `cert-manager/cert-manager-istio-csr-rhel9 (all versions)` - `agent-sandbox/agent-sandbox-rhel9-operator (all versions)` - `kmm/kernel-module-management-hub-rhel9-operator (all versions)` - `kube-descheduler-operator/descheduler-rhel9 (all versions)` - `openshift-logging/cluster-logging-rhel9-operator (all versions)` - `lvms4/lvms-must-gather-rhel8 (all versions)` - `lvms4/lvms-must-gather-rhel9 (all versions)` - `ca-certificates (all versions)` - `mta/mta-analyzer-addon-rhel9 (all versions)` - `rhmtc/openshift-migration-controller-rhel8 (all versions)` - `migration-toolkit-virtualization/mtv-api-rhel9 (all versions)` - `multicluster-engine/addon-manager-rhel9 (all versions)` - `network-observability/network-observability-cli-rhel9 (all versions)` - `openshift-serverless-1/kn-backstage-plugins-eventmesh-rhel9 (all versions)` - `openshift-serverless-1/logic-data-index-ephemeral-rhel9 (all versions)` - `openshift-service-mesh-dev-preview-beta/istio-ztunnel-rhel9 (all versions)` - `openshift-service-mesh/istio-cni-rhel9 (all versions)` - `openshift-service-mesh-tech-preview/istio-ztunnel-rhel9 (all versions)` - `rhacm2/acm-cli-rhel9 (all versions)` - `rhacm2/acm-cluster-permission-rhel9 (all versions)` - `advanced-cluster-security/rhacs-central-db-rhel8 (all versions)` - `advanced-cluster-security/rhacs-central-db-rhel9 (all versions)` - `ca-certificates (all versions)` - `rhcl-1/authorino-rhel9 (all versions)` - `ca-certificates (all versions)` - `ca-certificates (all versions)` - `ca-certificates (all versions)` - `ca-certificates (all versions)` - `ca-certificates (all versions)` - `ca-certificates (all versions)` - `openshift/ose-rhel-coreos-8 (all versions)` - `openshift/ose-rhel-coreos-9 (all versions)` - `rhosdt/opentelemetry-collector-rhel9 (all versions)` - `ca-certificates (all versions)` - `openshift4-wincw/windows-machine-config-rhel9-operator (all versions)` - `container-native-virtualization/aaq-controller-rhel9 (all versions)` - `ca-certificates (all versions)` - `quay/clair-rhel8 (all versions)` - `quay/clair-rhel9 (all versions)` - `mosquitto` ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges. ### Workarounds See the security bulletin for a detailed mitigation procedure.