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Advisory severityLow2.5Vendor: HighRed Hat Linux

Low [CVE-2026-66785] IPsec PSK secrets file created with default world-readable permissions

This low-severity Red Hat Linux advisory covers CVE-2026-66785 affecting Red Hat Advanced Cluster Management for Kubernetes 2.17.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-66785 Source published Source updated

VulniPulse record published Record updated

CVE-2026-66785
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

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Summary

A flaw was found in Submariner. This vulnerability allows a malicious cluster (spoke) to redirect network traffic from other connected clusters (peer clusters) by publishing a specially crafted network endpoint.

The system fails to properly validate the network subnets provided by the malicious cluster, enabling it to declare arbitrary network ranges. Consequently, all network traffic intended for these arbitrary ranges from peer clusters will be rerouted through the attacker's tunnel, potentially leading to unauthorized information disclosure or network disruption.

This is an Important vulnerability in Red Hat Advanced Cluster Management for Kubernetes. This could lead to unauthorized data interception or redirection within the multi-cluster environment.

Red Hat severity: Important — CVSS 2.5 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-732.

Red Hat fixing advisory: RHSA-2026:63016.

Affected product named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.17.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 9 days ago·verify at source

Fixed versions
  • rhacm2/lighthouse-agent-rhel9:1788023916
  • rhacm2/lighthouse-coredns-rhel9:1788023940
  • rhacm2/subctl-rhel9:1788105072
  • rhacm2/submariner-gateway-rhel9:1788043964
  • rhacm2/submariner-globalnet-rhel9:1788043961
  • rhacm2/submariner-rhel9-operator:1788073481
  • rhacm2/submariner-route-agent-rhel9:1788043970
  • RHSA-2026:63016

Official advisory · high-confidence parse· fetched 9 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Official advisory · high-confidence parse· fetched 9 days ago·verify at source

Discussion(0)

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