Description
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.
Published: 2026-10-21
Score: 6.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

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Tracking

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Advisories

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History

Fri, 23 Oct 2026 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Eus
CPEs cpe:/o:redhat:rhel_eus:9.6::baseos
Vendors & Products Redhat rhel Eus
References

Fri, 23 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Eus Long Life
CPEs cpe:/o:redhat:rhel_aus:8.6::baseos
cpe:/o:redhat:rhel_eus_long_life:8.6::baseos
Vendors & Products Redhat rhel Eus Long Life
References

Fri, 23 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Aus
CPEs cpe:/o:redhat:rhel_aus:8.4::baseos
Vendors & Products Redhat rhel Aus
References

Fri, 23 Oct 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Tus
CPEs cpe:/o:redhat:rhel_e4s:8.8::baseos
cpe:/o:redhat:rhel_tus:8.8::baseos
Vendors & Products Redhat rhel Tus
References

Fri, 23 Oct 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat enterprise Linux Eus
Redhat rhel E4s
CPEs cpe:/o:redhat:enterprise_linux_eus:10.0
cpe:/o:redhat:rhel_e4s:9.4::baseos
Vendors & Products Redhat enterprise Linux Eus
Redhat rhel E4s
References

Fri, 23 Oct 2026 07:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:8::baseos
References

Fri, 23 Oct 2026 01:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:acm:2
cpe:/a:redhat:assisted_installer:2
cpe:/a:redhat:cert_manager:1
cpe:/a:redhat:confidential_compute_attestation:1
cpe:/a:redhat:connectivity_link:1
cpe:/a:redhat:container_native_virtualization:4
cpe:/a:redhat:container_native_virtualization:5
cpe:/a:redhat:kernel_module_management:2
cpe:/a:redhat:kube_descheduler_operator:5
cpe:/a:redhat:logging:6
cpe:/a:redhat:lvms:4
cpe:/a:redhat:lvms:5
cpe:/a:redhat:migration_toolkit_applications:8
cpe:/a:redhat:migration_toolkit_virtualization:2
cpe:/a:redhat:multicluster_engine
cpe:/a:redhat:network_observ_optr:1
cpe:/a:redhat:openshift_distributed_tracing:3
cpe:/a:redhat:quay:3
cpe:/a:redhat:rhmt:1
cpe:/a:redhat:serverless:1
cpe:/a:redhat:service_mesh:3
cpe:/a:redhat:windows_machine_config
Vendors & Products Redhat acm
Redhat assisted Installer
Redhat cert Manager
Redhat confidential Compute Attestation
Redhat connectivity Link
Redhat container Native Virtualization
Redhat kernel Module Management
Redhat kube Descheduler Operator
Redhat logging
Redhat lvms
Redhat migration Toolkit Applications
Redhat migration Toolkit Virtualization
Redhat multicluster Engine
Redhat network Observ Optr
Redhat openshift Distributed Tracing
Redhat quay
Redhat rhmt
Redhat serverless
Redhat service Mesh
Redhat windows Machine Config

Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:9
cpe:/o:redhat:enterprise_linux:10.2
cpe:/o:redhat:enterprise_linux:9::baseos
References

Thu, 22 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Critical


Thu, 22 Oct 2026 04:00:00 +0000

Type Values Removed Values Added
References

Wed, 21 Oct 2026 21:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Ca-certificates: distrust emudhra intermediate ca certificates due to security concerns
First Time appeared Redhat
Redhat acm
Redhat advanced Cluster Security
Redhat assisted Installer
Redhat cert Manager
Redhat confidential Compute Attestation
Redhat connectivity Link
Redhat container Native Virtualization
Redhat enterprise Linux
Redhat hummingbird
Redhat kernel Module Management
Redhat kube Descheduler Operator
Redhat logging
Redhat lvms
Redhat migration Toolkit Applications
Redhat migration Toolkit Virtualization
Redhat multicluster Engine
Redhat network Observ Optr
Redhat openshift
Redhat openshift Distributed Tracing
Redhat quay
Redhat rhmt
Redhat satellite
Redhat serverless
Redhat service Mesh
Redhat windows Machine Config
Weaknesses CWE-295
CPEs cpe:/a:redhat:acm:2
cpe:/a:redhat:advanced_cluster_security:4
cpe:/a:redhat:assisted_installer:2
cpe:/a:redhat:cert_manager:1
cpe:/a:redhat:confidential_compute_attestation:1
cpe:/a:redhat:connectivity_link:1
cpe:/a:redhat:container_native_virtualization:4
cpe:/a:redhat:container_native_virtualization:5
cpe:/a:redhat:hummingbird:1
cpe:/a:redhat:kernel_module_management:2
cpe:/a:redhat:kube_descheduler_operator:5
cpe:/a:redhat:logging:6
cpe:/a:redhat:lvms:4
cpe:/a:redhat:lvms:5
cpe:/a:redhat:migration_toolkit_applications:8
cpe:/a:redhat:migration_toolkit_virtualization:2
cpe:/a:redhat:multicluster_engine
cpe:/a:redhat:network_observ_optr:1
cpe:/a:redhat:openshift:4
cpe:/a:redhat:openshift_distributed_tracing:3
cpe:/a:redhat:quay:3
cpe:/a:redhat:rhmt:1
cpe:/a:redhat:satellite:6
cpe:/a:redhat:serverless:1
cpe:/a:redhat:service_mesh:3
cpe:/a:redhat:windows_machine_config
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat acm
Redhat advanced Cluster Security
Redhat assisted Installer
Redhat cert Manager
Redhat confidential Compute Attestation
Redhat connectivity Link
Redhat container Native Virtualization
Redhat enterprise Linux
Redhat hummingbird
Redhat kernel Module Management
Redhat kube Descheduler Operator
Redhat logging
Redhat lvms
Redhat migration Toolkit Applications
Redhat migration Toolkit Virtualization
Redhat multicluster Engine
Redhat network Observ Optr
Redhat openshift
Redhat openshift Distributed Tracing
Redhat quay
Redhat rhmt
Redhat satellite
Redhat serverless
Redhat service Mesh
Redhat windows Machine Config
References
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N'}


Subscriptions

Redhat Advanced Cluster Security Enterprise Linux Enterprise Linux Eus Hummingbird Openshift Rhel Aus Rhel E4s Rhel Eus Rhel Eus Long Life Rhel Tus Satellite
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-10-23T13:25:08.847Z

Reserved: 2026-10-21T11:57:07.758Z

Link: CVE-2026-114406

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-21T21:17:58.547

Modified: 2026-10-23T13:17:08.410

Link: CVE-2026-114406

cve-icon Redhat

Severity : Critical

Publid Date: 2026-10-20T13:00:00Z

Links: CVE-2026-114406 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-22T03:30:13Z

Weaknesses
  • CWE-295

    Improper Certificate Validation