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Advisory severityMedium5.5Red Hat Linux

Medium [CVE-2026-75485] /tmp/kubeconfig retention

This medium-severity Red Hat Linux advisory covers CVE-2026-75485 affecting 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.

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

CVE-2026-75485 Source published Source updated

VulniPulse record published Record updated

CVE-2026-75485
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

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Summary

A flaw was found in the must-gather component of Red Hat Advanced Cluster Management for Kubernetes. The cluster Proxy object is dumped in raw form, bypassing the oc inspect redaction that would normally sanitize sensitive fields.

This exposes proxy basic-auth credentials in the must-gather archive, potentially disclosing sensitive authentication information to anyone with access to the archive. This flaw in the ACM must-gather tool causes the cluster Proxy object to be collected without redaction, bypassing the sanitization provided by oc inspect.

Proxy basic-auth credentials are exposed in the resulting archive, which may be shared with support teams or stored externally. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

Weakness: CWE-532. Red Hat fixing advisory: RHSA-2026:60387, RHSA-2026:60390, RHSA-2026:60388, RHSA-2026:60389, RHSA-2026:60391, RHSA-2026:60386.

Affected products named by the advisory: 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; and 2 more.

Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.16; 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 23 days ago·verify at source

Fixed versions
  • rhacm2/acm-must-gather-rhel9:1787263322
  • rhacm2/acm-must-gather-rhel9:1787260453
  • rhacm2/acm-must-gather-rhel9:1787189811
  • rhacm2/acm-must-gather-rhel9:1787238730
  • rhacm2/acm-must-gather-rhel9:1787234748
  • rhacm2/acm-must-gather-rhel9:1787228698
  • RHSA-2026:60387
  • RHSA-2026:60390
  • RHSA-2026:60388
  • RHSA-2026:60389
  • RHSA-2026:60391
  • RHSA-2026:60386

Official advisory · high-confidence parse· fetched 23 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • To mitigate the risk of credential exposure, restrict access to must-gather archives to authorized personnel only. Before sharing must-gather archives, especially with external entities, manually inspect and redact any sensitive information, including proxy basic-auth credentials, from the `cluster Proxy object` within the archive.

Official advisory · high-confidence parse· fetched 23 days ago·verify at source

Discussion(0)

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