Vulnerability in Red Hat Advanced Cluster Management For Kubernetes 2
CVE-2026-73834
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.001 (1.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-73834 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:60386 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60389 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60390 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60387 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60388 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60391 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-73834?
- CVE-2026-73834 is a medium-severity vulnerability in Red Hat Advanced Cluster Management For Kubernetes 2, classified under Cleartext Storage of Sensitive Information. CVSS score: 5.5/10. Published 2026-08-18.
- How severe is CVE-2026-73834?
- Medium severity. CVSS v3 base score is 5.5 out of 10.