CVE Intelligence
Medium Cryptography

CVE-2026-114406 — Ca-certificates: distrust emudhra intermediate ca certificates due to security concerns

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 Oct 21, 2026 · Updated Oct 22, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: redhat

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
—
No EPSS score.
Affects
Red Hat
Assisted Installer for Red Hat OpenShift Container Platform 2 and 28 more
CVSS base
6.8
Medium · 3 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (Red Hat Assisted Installer for Red Hat OpenShift Container Platform 2, Red Hat Cert-manager Operator For Red Hat Openshift, Red Hat Confidential Compute Attestation…).
  2. The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
  3. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
  4. Exploitation requires user interaction: tighten email/web filtering and warn affected users.
  5. Search available logs for exploit probes matching the vulnerability class (cryptography), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Red Hat Assisted Installer for Red Hat OpenShift Container Platform 2 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Cert-manager Operator For Red Hat Openshift versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Confidential Compute Attestation versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Hardened Images versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Kernel Module Management Operator for Red Hat Openshift versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Kube Descheduler Operator versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Logging Subsystem For Red Hat Openshift versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Logical Volume Manager Storage versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Migration Toolkit for Applications 8 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Migration Toolkit For Containers versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Migration Toolkit For Virtualization versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Multicluster Engine For Kubernetes versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Network Observability Operator versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Openshift Serverless versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat OpenShift Service Mesh 3 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat Advanced Cluster Security 4 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat Connectivity Link 1 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat Enterprise Linux 10 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat Enterprise Linux 6 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat Enterprise Linux 7 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat Enterprise Linux 8 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat Enterprise Linux 9 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat OpenShift Container Platform 4 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat OpenShift distributed tracing 3 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat OpenShift for Windows Containers versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat OpenShift Virtualization 4 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat OpenShift Virtualization 5 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Red Hat Red Hat Quay 3 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
6.8 CVSS 3.1 Medium 1.6 5.2 secalert@redhat.com via NIST National Vulnerability Database
6.8 CVSS 3.1 Medium — — GitHub, Inc. via GitHub Security Advisories
6.8 CVSS 3.1 Medium — — redhat via CVE Program (cve.org) e CISA ADP
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N (score shown at the top: secalert@redhat.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-295 · Improper Certificate Validation

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
  • Check TLS negotiations and unexpected certificates in the component’s traffic.
web/proxy/WAF logsnetwork IDS/IPS

Timeline

What happened to this CVE, newest first.

  • 2026
  • Affected products added · red hat/assisted installer for red hat openshift container platform 2, red hat/cert-manager operator for red hat openshi
    Oct 21, 2026 · CVE Program (cve.org) e CISA ADP
  • Record published
    Oct 21, 2026
  • CVSS changed · 6.8
    Oct 21, 2026 · NIST National Vulnerability Database
  • Source status changed · → Received
    Oct 21, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 21, 2026 · Alertas do Telegram
  • CVE published
    Oct 21, 2026 · redhat

Source activity

Repeated readings are counted rather than listed.

  • 3× References added · Oct 21, 2026 – Oct 22, 2026
  • 1× Official description updated · Oct 21, 2026 – Oct 21, 2026

References

6 on the record

Elsewhere on this site

Red Hat
every CVE for this vendor
Cryptography
same class
CWE-295
other pages naming this weakness

Related CVEs (same products)

  • Medium CVE-2026-85518 Openscap: openscap: arbitrary file write via path traversal in source datastream decomposition 9h
  • Low CVE-2026-114236 Podman: goroutine/file-descriptor leak in storage/pkg/archive.applylayer and applyuncompressedlayer on malformed layers 20h
  • Medium CVE-2026-92823 Libmodulemd: libmodulemd: missing decompressed-size limit when parsing compressed yaml 1d
  • Medium CVE-2026-92824 Libmodulemd: libmodulemd: out-of-bounds read when emitting rpm-map artifacts 1d
  • Medium CVE-2026-92822 Libmodulemd: libmodulemd: unbounded recursion when parsing nested xmd yaml 1d
  • Medium CVE-2026-114038 Device-mapper-multipath: device-mapper-multipath: information disclosure via malformed format string 1d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No FIRST EPSS score.
  • No fixed version, patch or mitigation documented.
  • No CISA SSVC assessment.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-114406 is "Ca-certificates: distrust emudhra intermediate ca certificates due to security concerns", rated Medium. It affects Assisted Installer for Red Hat OpenShift Container Platform 2 (Red Hat); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.8 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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