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Advisory severityMedium5.5Red Hat Linux

Medium [CVE-2026-73834] embedded Secret data in ACM wrapper CRs collected without redaction

This medium-severity Red Hat Linux advisory covers CVE-2026-73834 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-2026-73834 Source published Source updated

VulniPulse record published Record updated

CVE-2026-73834
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. Certain ACM wrapper Custom Resources that embed Secret data are collected without redaction.

When an administrator runs must-gather, credentials and tokens are captured in cleartext in the resulting archive, potentially exposing sensitive information to anyone with access to the archive. The must-gather archive may be shared with support teams or stored externally, creating an information disclosure risk for credentials embedded in these resources.

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-312.

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
  • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

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

Discussion(0)

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