--- 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: ca-certificates affected: - ca-certificates (all versions) - ca-certificates (all versions) - ca-certificates (all versions) - nss (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) - 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) - openshift/ose-rhel-coreos-9 (all versions) - openshift/ose-rhel-coreos-9 (all versions) - openshift/ose-rhel-coreos-9 (all versions) - openshift/ose-rhel-coreos-9 (all versions) - openshift/ose-rhel-coreos-9 (all versions) - openshift/ose-rhel-coreos-9 (all versions) - ca-certificates-main (all versions) - openshift-builds/openshift-builds-controller-rhel9 (all versions) - openshift-builds/openshift-builds-git-cloner-rhel9 (all versions) - openshift-builds/openshift-builds-image-bundler-rhel9 (all versions) - openshift-builds/openshift-builds-image-processing-rhel9 (all versions) - openshift-builds/openshift-builds-rhel9-operator (all versions) - openshift-builds/openshift-builds-shared-resource-rhel9 (all versions) - >- openshift-builds/openshift-builds-shared-resource-webhook-rhel9 (all versions) - openshift-builds/openshift-builds-waiters-rhel9 (all versions) - openshift-builds/openshift-builds-webhook-rhel9 (all versions) - openshift-builds/openshift-builds-controller-rhel10 (all versions) - openshift-builds/openshift-builds-git-cloner-rhel10 (all versions) - openshift-builds/openshift-builds-image-bundler-rhel10 (all versions) - openshift-builds/openshift-builds-image-processing-rhel10 (all versions) - openshift-builds/openshift-builds-rhel10-operator (all versions) - openshift-builds/openshift-builds-shared-resource-rhel10 (all versions) - >- openshift-builds/openshift-builds-shared-resource-webhook-rhel10 (all versions) - openshift-builds/openshift-builds-waiters-rhel10 (all versions) - openshift-builds/openshift-builds-webhook-rhel10 (all versions) - advanced-cluster-security/rhacs-central-db-rhel8 (all versions) - openshift-gitops-1/argocd-agent-rhel9 (all versions) - openshift-gitops-1/argocd-image-updater-rhel9 (all versions) - openshift-gitops-1/argocd-rhel9 (all versions) - openshift-gitops-1/argo-rollouts-rhel9 (all versions) - openshift-gitops-1/dex-rhel9 (all versions) - openshift-gitops-1/gitops-promoter-rhel9 (all versions) - openshift-gitops-1/gitops-rhel9 (all versions) published: '2026-10-21' updated: '2026-10-28' sourceUpdated: '2026-10-28T19:10:27.975Z' source: CVEORG sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-114406' references: - url: 'https://access.redhat.com/errata/RHSA-2026:86595' label: 'RHSA-2026:86595' - url: 'https://access.redhat.com/errata/RHSA-2026:88455' label: 'RHSA-2026:88455' - url: 'https://access.redhat.com/errata/RHSA-2026:88459' label: 'RHSA-2026:88459' - url: 'https://access.redhat.com/errata/RHSA-2026:88550' label: 'RHSA-2026:88550' - url: 'https://access.redhat.com/errata/RHSA-2026:88560' label: 'RHSA-2026:88560' - url: 'https://access.redhat.com/errata/RHSA-2026:88562' label: 'RHSA-2026:88562' - url: 'https://access.redhat.com/errata/RHSA-2026:88563' label: 'RHSA-2026:88563' - url: 'https://access.redhat.com/errata/RHSA-2026:88564' label: 'RHSA-2026:88564' - url: 'https://access.redhat.com/errata/RHSA-2026:88662' label: 'RHSA-2026:88662' - url: 'https://access.redhat.com/errata/RHSA-2026:88668' label: 'RHSA-2026:88668' - url: 'https://access.redhat.com/errata/RHSA-2026:88669' label: 'RHSA-2026:88669' - url: 'https://access.redhat.com/errata/RHSA-2026:88779' label: 'RHSA-2026:88779' - url: 'https://access.redhat.com/errata/RHSA-2026:89081' label: 'RHSA-2026:89081' - url: 'https://access.redhat.com/errata/RHSA-2026:89131' label: 'RHSA-2026:89131' - url: 'https://access.redhat.com/errata/RHSA-2026:89197' label: 'RHSA-2026:89197' - url: 'https://access.redhat.com/errata/RHSA-2026:89232' label: 'RHSA-2026:89232' - url: 'https://access.redhat.com/errata/RHSA-2026:89333' label: 'RHSA-2026:89333' - url: 'https://access.redhat.com/errata/RHSA-2026:89651' label: 'RHSA-2026:89651' - url: 'https://access.redhat.com/errata/RHSA-2026:89714' label: 'RHSA-2026:89714' - url: 'https://access.redhat.com/errata/RHSA-2026:89725' label: 'RHSA-2026:89725' - url: 'https://access.redhat.com/errata/RHSA-2026:89838' label: 'RHSA-2026:89838' - url: 'https://access.redhat.com/errata/RHSA-2026:90272' label: 'RHSA-2026:90272' - url: 'https://access.redhat.com/errata/RHSA-2026:90985' label: 'RHSA-2026:90985' - 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 - url: >- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-114406.json - url: 'https://www.cve.org/CVERecord?id=CVE-2026-114406' - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-114406' tags: - cve.org - csaf - vex - red-hat epss: 0.0031 epssPercentile: 0.23811 patched: - enterprise_linux_baseos_eus_v_10_0 - enterprise_linux_baseos_v_10 - enterprise_linux_baseos_v_8 - enterprise_linux_baseos_aus_v_8_4 - enterprise_linux_baseos_e4s_v_8_8 - enterprise_linux_baseos_tus_v_8_8 - enterprise_linux_baseos_e4s_v_9_4 - enterprise_linux_baseos_v_9 - hardened_images 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 - `ca-certificates (all versions)` - `ca-certificates (all versions)` - `ca-certificates (all versions)` - `nss (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)` - `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)` - `openshift/ose-rhel-coreos-9 (all versions)` - `openshift/ose-rhel-coreos-9 (all versions)` - `openshift/ose-rhel-coreos-9 (all versions)` - `openshift/ose-rhel-coreos-9 (all versions)` - `openshift/ose-rhel-coreos-9 (all versions)` - `openshift/ose-rhel-coreos-9 (all versions)` - `ca-certificates-main (all versions)` - `openshift-builds/openshift-builds-controller-rhel9 (all versions)` - `openshift-builds/openshift-builds-git-cloner-rhel9 (all versions)` - `openshift-builds/openshift-builds-image-bundler-rhel9 (all versions)` - `openshift-builds/openshift-builds-image-processing-rhel9 (all versions)` - `openshift-builds/openshift-builds-rhel9-operator (all versions)` - `openshift-builds/openshift-builds-shared-resource-rhel9 (all versions)` - `openshift-builds/openshift-builds-shared-resource-webhook-rhel9 (all versions)` - `openshift-builds/openshift-builds-waiters-rhel9 (all versions)` - `openshift-builds/openshift-builds-webhook-rhel9 (all versions)` - `openshift-builds/openshift-builds-controller-rhel10 (all versions)` - `openshift-builds/openshift-builds-git-cloner-rhel10 (all versions)` - `openshift-builds/openshift-builds-image-bundler-rhel10 (all versions)` - `openshift-builds/openshift-builds-image-processing-rhel10 (all versions)` - `openshift-builds/openshift-builds-rhel10-operator (all versions)` - `openshift-builds/openshift-builds-shared-resource-rhel10 (all versions)` - `openshift-builds/openshift-builds-shared-resource-webhook-rhel10 (all versions)` - `openshift-builds/openshift-builds-waiters-rhel10 (all versions)` - `openshift-builds/openshift-builds-webhook-rhel10 (all versions)` - `advanced-cluster-security/rhacs-central-db-rhel8 (all versions)` - `openshift-gitops-1/argocd-agent-rhel9 (all versions)` - `openshift-gitops-1/argocd-image-updater-rhel9 (all versions)` - `openshift-gitops-1/argocd-rhel9 (all versions)` - `openshift-gitops-1/argo-rollouts-rhel9 (all versions)` - `openshift-gitops-1/dex-rhel9 (all versions)` - `openshift-gitops-1/gitops-promoter-rhel9 (all versions)` - `openshift-gitops-1/gitops-rhel9 (all versions)` ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges. ### Workarounds See the security bulletin for a detailed mitigation procedure. ## Vendor advisories - **RHSA-2026:88560** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS EUS (v. 10.0) · released 2026-10-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:88560) - **RHSA-2026:88455** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS (v. 10) · released 2026-10-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:88455) - **RHSA-2026:88550** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS (v. 8) · released 2026-10-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:88550) - **RHSA-2026:88669** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS AUS (v.8.4) · released 2026-10-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:88669) - **RHSA-2026:88662** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8) · released 2026-10-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:88662) - **RHSA-2026:88564** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS E4S (v.9.4) · released 2026-10-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:88564) - **RHSA-2026:88459** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS (v. 9) · released 2026-10-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:88459) - **RHSA-2026:86595** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:86595) - **Red Hat VEX** · Critical · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat OpenShift Container Platform 4 · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-114406.json)