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CVE-2026-75485— Must-gather: /tmp/kubeconfig retention

Quick assessment

Affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenShift must-gather是OpenShift公司开源的一款收集集群诊断信息的命令行工具。 OpenShift must-gather 存在日志信息泄露漏洞，该漏洞源于must-gather组件将cluster Proxy对象以原始形式转储，绕过oc inspect对敏感字段的编辑，暴露代理基本认证凭据，可能导致敏感认证信息泄露。

CVSS 5.5 · Medium EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-75485

Vulnerability Information
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Vulnerability Title
Must-gather: /tmp/kubeconfig retention
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
OpenShift must-gather 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenShift must-gather是OpenShift公司开源的一款收集集群诊断信息的命令行工具。 OpenShift must-gather 存在日志信息泄露漏洞，该漏洞源于must-gather组件将cluster Proxy对象以原始形式转储，绕过oc inspect对敏感字段的编辑，暴露代理基本认证凭据，可能导致敏感认证信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11 1787263322 ~ * cpe:/a:redhat:acm:2.11::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 1787260453 ~ * cpe:/a:redhat:acm:2.13::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 1787189811 ~ * cpe:/a:redhat:acm:2.14::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15 1787238730 ~ * cpe:/a:redhat:acm:2.15::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 1787234748 ~ * cpe:/a:redhat:acm:2.16::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 1787228698 ~ * cpe:/a:redhat:acm:2.17::el9

II. Public POCs for CVE-2026-75485

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III. Intelligence Information for CVE-2026-75485

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Vendor Advisories for CVE-2026-75485 (8)

Same Patch Batch · Red Hat · 2026-08-18 · 14 CVEs total

CVE-2026-12564 9.6 CRITICAL Automation-controller: automation-controller: kubernetes service account token exfiltratio
CVE-2026-18963 9.1 CRITICAL Keycloak-services: keycloak-services: unauthenticated account takeover via reset-credentia
CVE-2026-66793 8.8 HIGH Governance-policy-addon-controller: governance-policy-addon-controller: arbitrary containe
CVE-2026-75924 8.7 HIGH Managed-serviceaccount: managed-serviceaccount: hub addon-manager clusterrole grants clust
CVE-2026-71365 7.7 HIGH Awx: webhook status callback ssrf leaks the git pat
CVE-2026-15571 7.3 HIGH Keycloak-services: keycloak-services: predictable account-linking hash enables account tak
CVE-2026-66780 6.5 MEDIUM Submariner-operator: broker serviceaccount secret (token + ca) logged in full at trace ver
CVE-2026-75032 6.3 MEDIUM Bluez: bluez: out-of-bounds read in avrcp parse_media_element and parse_media_folder
CVE-2026-66782 5.8 MEDIUM Submariner-operator: operator clusterrole grants cluster-wide create/update on all configm
CVE-2026-73834 5.5 MEDIUM Must-gather: must-gather: embedded secret data in acm wrapper crs collected without redact
CVE-2026-66781 5.4 MEDIUM Submariner-operator: pprof debug endpoint enabled by default on 0.0.0.0:8082 without authe
CVE-2026-19608 5.3 MEDIUM Keycloak-services: keycloak-services: name-only group claims let same-name groups satisfy
CVE-2026-66783 4.4 MEDIUM Submariner-operator: release workflow consumes same-org composite action via mutable @deve

IV. Related Vulnerabilities

Same product: Red Hat Advanced Cluster Management for Kubernetes 2.11
Same vendor: Red Hat
Same weakness: CWE-532

V. Comments for CVE-2026-75485

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