CVE-2026-75485

Must-gather: /tmp/kubeconfig retention

Published Aug 18, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Workaround

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.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Must-gather: must-gather: cluster proxy object dumped raw, bypassing inspect redaction of proxy basic-auth credentials Must-gather: /tmp/kubeconfig retention
Type Values Removed Values Added
CPEs cpe:/a:redhat:acm:2 cpe:/a:redhat:acm:2.13::el9
cpe:/a:redhat:acm:2.15::el9
cpe:/a:redhat:acm:2.17::el9
References
Type Values Removed Values Added
First Time appeared Redhat advanced Cluster Management For Kubernetes
Vendors & Products Redhat advanced Cluster Management For Kubernetes
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Must-gather: must-gather: cluster proxy object dumped raw, bypassing inspect redaction of proxy basic-auth credentials
First Time appeared Redhat
Redhat acm
Weaknesses CWE-532
CPEs cpe:/a:redhat:acm:2
Vendors & Products Redhat
Redhat acm
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Sep 5, 2026, 5:08 PM
Reserved
Aug 18, 2026, 2:31 PM
Status
Awaiting Analysis
Published
Aug 18, 2026, 4:18 PM
Modified
Sep 5, 2026, 6:17 PM
Severity
Moderate
Public date
Aug 18, 2026, 2:30 PM