Must-gather: /tmp/kubeconfig retention
Priority LOW 24CWE-532Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-532.
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00195 9th percentileScored 2026-11-07
Fix Fixed Red Hat: 6 advisories
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.11 | — | 1787263322 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 | — | 1787260453 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 | — | 1787189811 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 | — | 1787238730 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 | — | 1787234748 | Patch available | CNA |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 | — | 1787228698 | Patch available | CNA |
- Red Hat Advanced Cluster Management for Kubernetes 2.11 VendorRed Hat Affected — Fixed in 1787263322 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.13 VendorRed Hat Affected — Fixed in 1787260453 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.14 VendorRed Hat Affected — Fixed in 1787189811 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.15 VendorRed Hat Affected — Fixed in 1787238730 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.16 VendorRed Hat Affected — Fixed in 1787234748 Patch available CNA
- Red Hat Advanced Cluster Management for Kubernetes 2.17 VendorRed Hat Affected — Fixed in 1787228698 Patch available CNA
CPE names CNA · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/a:redhat:acm:2.11::el9 | 2.11 | — | Red Hat |
| cpe:/a:redhat:acm:2.13::el9 | 2.13 | — | Red Hat |
| cpe:/a:redhat:acm:2.14::el9 | 2.14 | — | Red Hat |
| cpe:/a:redhat:acm:2.15::el9 | 2.15 | — | Red Hat |
| cpe:/a:redhat:acm:2.16::el9 | 2.16 | — | Red Hat |
| cpe:/a:redhat:acm:2.17::el9 | 2.17 | — | 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
Remediation
Red Hat 6 advisories
- RHSA-2026:60391 Released 2026-08-26 · Red Hat rating ImportantRed 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
- RHSA-2026:60390 Released 2026-08-26 · Red Hat rating ImportantRed 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 ImportantRed 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
Show 3 more Red Hat advisories
- RHSA-2026:60389 Released 2026-08-26 · Red Hat rating ImportantRed 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 ImportantRed 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 ImportantRed 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
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Advanced Cluster Management for Kubernetes 2.11 | Fixed | RHSA-2026:60387 |
| Red Hat Advanced Cluster Management for Kubernetes 2.13 | Fixed | RHSA-2026:60390 |
| Red Hat Advanced Cluster Management for Kubernetes 2.14 | Fixed | RHSA-2026:60388 |
| Red Hat Advanced Cluster Management for Kubernetes 2.15 | Fixed | RHSA-2026:60389 |
| Red Hat Advanced Cluster Management for Kubernetes 2.16 | Fixed | RHSA-2026:60391 |
| Red Hat Advanced Cluster Management for Kubernetes 2.17 | Fixed | RHSA-2026:60386 |
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
- 2026-10-02 Threatist record created from CVE-2026-75485
- 2026-10-03 Alias added: GHSA-28f5-gvgw-386q
References
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Sources
- CVE-2026-75485 · CVE Program
- CVE-2026-75485 · NVD
- FIRST EPSS
- GHSA-28f5-gvgw-386q · GitHub Advisory Database · CC BY 4.0
- CVE-2026-75485 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences