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  4. CVE 2026 78234 hawtio operator hawtio operator service ca
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Back to active CVEs
Critical · CVSS 9.9CVE-2026-78234

Hawtio-operator: hawtio-operator: service-ca signing oracle allows arbitrary-cn certificate issuance to namespace edit usersCVE-2026-78234

Answer in brief

CVE-2026-78234 records a Critical severity (CVSS 9.9) vulnerability in Hawtio-operator: hawtio-operator: service-ca signing oracle allows arbitrary-cn certificate issuance to namespace edit users. The current sources do not mark it as known exploited. The current feed maps Red Hat/rhbac-4/hawtio-gateway-rhel9 (generic), Red Hat/rhbac-4/hawtio-operator-bundle (generic), Red Hat/rhbac-4/hawtio-rhel9 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 8, 2026Updated Sep 8, 2026Source checked Oct 23, 2026First seen by HOL Sep 8, 2026Material review Sep 8, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.9
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/rhbac-4/hawtio-gateway-rhel9 (generic), Red Hat/rhbac-4/hawtio-operator-bundle (generic), Red Hat/rhbac-4/hawtio-rhel9 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/rhbac-4/hawtio-gateway-rhel9generic*Not reported
Red Hat/rhbac-4/hawtio-operator-bundlegeneric*Not reported
Red Hat/rhbac-4/hawtio-rhel9generic*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/rhbac-4/hawtio-gateway-rhel9, Red Hat/rhbac-4/hawtio-operator-bundle, Red Hat/rhbac-4/hawtio-rhel9.
  2. 2Review the reported fix. Source-reported workaround: Do not set spec.routeHostName to values outside the operator's own namespace service names. Restrict which users can create or modify Hawtio custom resources via RBAC. Audit existing Hawtio CR instances for unexpected routeHostName values and rotate any TLS certificates that may have been issued with incorrect Common Names.

Evidence timeline and material changes

  1. Published upstream

    Sep 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 8, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
Upstream source description

A flaw was found in hawtio-operator. The operator reads the OpenShift Service CA private signing key from the openshift-service-ca namespace and uses it to mint client certificates with a Subject Common Name (CN) supplied by the author of a namespaced Hawtio custom resource. Because the operator ships a ClusterRole that aggregates Hawtio CR permissions into the edit and admin roles, any user with edit access in any namespace can obtain a Service-CA-signed certificate with an arbitrary subject. This certificate can be used to impersonate any in-cluster service identity to peers that trust the Service CA for client authentication, including Jolokia agents and other Service-CA-trusting components.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-295
Source
CVE List V5
Source checked
Oct 23, 2026
References
2 linked sources
Open source record