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TI-2026-60358 Aliases CVE-2026-89060GHSA-39w5-9x42-rwmr

Stolostron/multicluster-observability-addon: cross-namespace secret disclosure in…

Priority LOW 34CWE-551Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference Secrets, the add-on may copy the referenced Secrets to the attacker-controlled managed cluster.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00475 41st percentileScored 2026-11-07
Fix Fixed Red Hat: 5 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.13—1789126264Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.14—1789126262Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.15—1789126262Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.16—1789126267Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.17—1789126264Patch availableCNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.13 VendorRed Hat Affected — Fixed in 1789126264 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.14 VendorRed Hat Affected — Fixed in 1789126262 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.15 VendorRed Hat Affected — Fixed in 1789126262 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.16 VendorRed Hat Affected — Fixed in 1789126267 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.17 VendorRed Hat Affected — Fixed in 1789126264 Patch available CNA

CPE names CNA · 5

CPEVersionsRoleVendor
cpe:/a:redhat:acm:2.13::el92.13—Red Hat
cpe:/a:redhat:acm:2.14::el92.14—Red Hat
cpe:/a:redhat:acm:2.15::el92.15—Red Hat
cpe:/a:redhat:acm:2.16::el92.16—Red Hat
cpe:/a:redhat:acm:2.17::el92.17—Red Hat
  • cpe:/a:redhat:acm:2.13::el9 Versions 2.13 — ·Red Hat
  • cpe:/a:redhat:acm:2.14::el9 Versions 2.14 — ·Red Hat
  • cpe:/a:redhat:acm:2.15::el9 Versions 2.15 — ·Red Hat
  • cpe:/a:redhat:acm:2.16::el9 Versions 2.16 — ·Red Hat
  • cpe:/a:redhat:acm:2.17::el9 Versions 2.17 — ·Red Hat

Remediation

Red Hat 5 advisories

  • RHSA-2026:67543 Released 2026-09-15 · Red Hat rating Important
    Red Hat Advanced Cluster Management for Kubernetes v2.17.2 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.17 registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9, registry.redhat.io/rhacm2/console-rhel9, registry.redhat.io/rhacm2/grafana-dashboard-loader-rhel9 +3
  • RHSA-2026:67542 Released 2026-09-15 · Red Hat rating Important
    Red Hat Advanced Cluster Management for Kubernetes v2.16.5 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.16 registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9, registry.redhat.io/rhacm2/acm-prometheus-config-reloader-rhel9 +5
  • RHSA-2026:67541 Released 2026-09-15 · Red Hat rating Important
    Red Hat Advanced Cluster Management for Kubernetes v2.15.7 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.15 registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9, registry.redhat.io/rhacm2/acm-prometheus-config-reloader-rhel9 +9
Show 2 more Red Hat advisories
  • RHSA-2026:67540 Released 2026-09-15 · Red Hat rating Important
    Red Hat Advanced Cluster Management for Kubernetes v2.13.12 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.13 registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9, registry.redhat.io/rhacm2/acm-prometheus-config-reloader-rhel9 +5
  • RHSA-2026:67539 Released 2026-09-15 · Red Hat rating Important
    Red Hat Advanced Cluster Management for Kubernetes v2.14.5 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.14 registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9, registry.redhat.io/rhacm2/acm-prometheus-config-reloader-rhel9 +7

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Advanced Cluster Management for Kubernetes 2.13Fixed RHSA-2026:67540
Red Hat Advanced Cluster Management for Kubernetes 2.14Fixed RHSA-2026:67539
Red Hat Advanced Cluster Management for Kubernetes 2.15Fixed RHSA-2026:67541
Red Hat Advanced Cluster Management for Kubernetes 2.16Fixed RHSA-2026:67542
Red Hat Advanced Cluster Management for Kubernetes 2.17Fixed RHSA-2026:67543
Not affected: 5 products
  • Red Hat Advanced Cluster Management for Kubernetes 2.13
  • Red Hat Advanced Cluster Management for Kubernetes 2.14
  • Red Hat Advanced Cluster Management for Kubernetes 2.15
  • Red Hat Advanced Cluster Management for Kubernetes 2.16
  • Red Hat Advanced Cluster Management for Kubernetes 2.17

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-89060
  2. 2026-10-03 Alias added: GHSA-39w5-9x42-rwmr

References

Advisory 5

Other 3

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences