Read the docs
TI-2026-47426 Aliases CVE-2026-66781GHSA-gcch-g8g2-6852

Submariner-operator: pprof debug endpoint enabled by default on 0.0.0.0:8082 without authentication

Priority LOW 25CWE-749Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · Low
Fix status
Partial Red Hat: 6 fixed, 1 without a fix

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

Summary

A flaw was found in the Submariner operator. The Submariner Custom Resource (CR), used for configuring network connectivity, stores the IPsec pre-shared key (PSK) in an unencrypted format. This key, which is critical for securing communication between Kubernetes clusters, can be accessed by unauthorized parties. Such access enables an attacker to passively decrypt network traffic flowing between any two clusters in the mesh, resulting in sensitive information disclosure.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00395 33rd percentileScored 2026-11-07
Fix Partial Red Hat: 8 advisoriesRed Hat: 6 fixed, 1 without a fix

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 2.11—1787689013Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.13—1787365971Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.14—1787362756Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.15—1787362733Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.16—1787362694Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.16—1790670243Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.16—1790670912Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.17—1787362658Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.17—1788105072Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2.17—1788073481Patch availableCNA
Red HatRed Hat Advanced Cluster Management for Kubernetes 2——No fix listedCNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.11 VendorRed Hat Affected — Fixed in 1787689013 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.13 VendorRed Hat Affected — Fixed in 1787365971 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.14 VendorRed Hat Affected — Fixed in 1787362756 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.15 VendorRed Hat Affected — Fixed in 1787362733 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.16 VendorRed Hat Affected — Fixed in 1787362694 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.16 VendorRed Hat Affected — Fixed in 1790670243 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.16 VendorRed Hat Affected — Fixed in 1790670912 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.17 VendorRed Hat Affected — Fixed in 1787362658 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.17 VendorRed Hat Affected — Fixed in 1788105072 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2.17 VendorRed Hat Affected — Fixed in 1788073481 Patch available CNA
  • Red Hat Advanced Cluster Management for Kubernetes 2 VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE names CNA · 7

CPEVersionsRoleVendor
cpe:/a:redhat:acm:2.11::el92.11—Red Hat
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:22—Red Hat
  • cpe:/a:redhat:acm:2.11::el9 Versions 2.11 — ·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
  • cpe:/a:redhat:acm:2 Versions 2 — ·Red Hat

Remediation

Red Hat 8 advisories

  • RHSA-2026:85227 Released 2026-10-19 · Red Hat rating Important
    Submariner v0.23 security fixes and container updates
    • Red Hat Advanced Cluster Management for Kubernetes 2.16 registry.redhat.io/rhacm2/lighthouse-agent-rhel9, registry.redhat.io/rhacm2/lighthouse-coredns-rhel9, registry.redhat.io/rhacm2/subctl-rhel9 +4
  • RHSA-2026:63016 Released 2026-09-03 · Red Hat rating Important
    Submariner v0.24 security fixes and container updates
    • Red Hat Advanced Cluster Management for Kubernetes 2.17 registry.redhat.io/rhacm2/lighthouse-agent-rhel9, registry.redhat.io/rhacm2/lighthouse-coredns-rhel9, registry.redhat.io/rhacm2/subctl-rhel9 +4
  • RHSA-2026:60391 Released 2026-08-26 · Red Hat rating Important
    Red Hat Advanced Cluster Management for Kubernetes v2.16.4 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.16 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9 +19
Show 5 more Red Hat advisories
  • RHSA-2026:60390 Released 2026-08-26 · Red Hat rating Important
    Red Hat Advanced Cluster Management for Kubernetes v2.13.11 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.13 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9 +23
  • RHSA-2026:60388 Released 2026-08-26 · Red Hat rating Important
    Red Hat Advanced Cluster Management for Kubernetes v2.14.4 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.14 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9 +26
  • RHSA-2026:60389 Released 2026-08-26 · Red Hat rating Important
    Red Hat Advanced Cluster Management for Kubernetes v2.15.6 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.15 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9, registry.redhat.io/rhacm2/acm-must-gather-rhel9 +19
  • RHSA-2026:60387 Released 2026-08-26 · Red Hat rating Important
    Red Hat Advanced Cluster Management for Kubernetes v2.11.11 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.11 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-must-gather-rhel9, registry.redhat.io/rhacm2/acm-prometheus-config-reloader-rhel9 +24
  • RHSA-2026:60386 Released 2026-08-26 · Red Hat rating Important
    Red Hat Advanced Cluster Management for Kubernetes v2.17.1 security update
    • Red Hat Advanced Cluster Management for Kubernetes 2.17 registry.redhat.io/rhacm2/acm-governance-policy-addon-controller-rhel9, registry.redhat.io/rhacm2/acm-grafana-rhel9, registry.redhat.io/rhacm2/acm-multicluster-observability-addon-rhel9 +31

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Red Hat Advanced Cluster Management for Kubernetes 2, Red Hat Advanced Cluster Management for Kubernetes 2.11 and 5 more products — RHSA-2026:63016

    7 records Highest priority Priority MEDIUM 1 MEDIUM, 6 LOW

    Other records, highest priority first

    • TI-2026-47432 Lighthouse: lighthouse: arbitrary namespace injection via attacker-controlled broker labelPriority MEDIUM 44
    • TI-2026-47431 Lighthouse: lighthouse: cross-cluster dns spoofing via unvalidated endpointslice ip addressesPriority LOW 39
    • TI-2026-47429 Submariner: submariner: missing validation of remote endpoint subnets and clusterid enables cross-cluster traffic hijackPriority LOW 39
    Show all 7 records → Advisory →
  • Advisory ·

    Red Hat Advanced Cluster Management for Kubernetes 2, Red Hat Advanced Cluster Management for Kubernetes 2.11 and 5 more products — RHSA-2026:85227

    7 records Highest priority Priority MEDIUM 1 MEDIUM, 6 LOW

    Other records, highest priority first

    • TI-2026-47432 Lighthouse: lighthouse: arbitrary namespace injection via attacker-controlled broker labelPriority MEDIUM 44
    • TI-2026-47431 Lighthouse: lighthouse: cross-cluster dns spoofing via unvalidated endpointslice ip addressesPriority LOW 39
    • TI-2026-47429 Submariner: submariner: missing validation of remote endpoint subnets and clusterid enables cross-cluster traffic hijackPriority LOW 39
    Show all 7 records → Advisory →

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 2AffectedNo fix yet
Red Hat Advanced Cluster Management for Kubernetes 2.11Fixed RHSA-2026:60387
Red Hat Advanced Cluster Management for Kubernetes 2.13Fixed RHSA-2026:60390
Red Hat Advanced Cluster Management for Kubernetes 2.14Fixed RHSA-2026:60388
Red Hat Advanced Cluster Management for Kubernetes 2.15Fixed RHSA-2026:60389
Red Hat Advanced Cluster Management for Kubernetes 2.16Fixed RHSA-2026:60391, RHSA-2026:85227
Red Hat Advanced Cluster Management for Kubernetes 2.17Fixed RHSA-2026:60386, RHSA-2026:63016
Not affected: 6 products
  • Red Hat Advanced Cluster Management for Kubernetes 2.11
  • 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-2026-66781
  2. 2026-10-03 Alias added: GHSA-gcch-g8g2-6852
  3. 2026-10-19 Fix available: rhacm2/subctl-rhel9@1790670243, rhacm2/submariner-rhel9-operator@1790670912 · CNA
  4. 2026-10-19 1 new reference · CNA
  5. 2026-10-20 Fix available: RHSA-2026:85227 · Red Hat
  6. 2026-10-20 Affected versions changed · Red Hat

References

Advisory 8

Other 2

  • 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 7412 →

Sources

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