Vulnerability in Red Hat Multicluster Engine For Kubernetes
CVE-2026-75569
A flaw was found in mce-operator-bundle. The build process fetches and executes scripts from a remote repository without performing integrity checks, such as commit pinning or signature verification. This allows a malicious actor with write access to the remote repository to inject and execute arbitrary code during the build. The consequence is a compromised build process, potentially leading to the distribution of malicious software.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (46.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-75569 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:59634 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:59636 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:59638 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:59642 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:59643 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:59637 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-75569?
- CVE-2026-75569 is a high-severity vulnerability in Red Hat Multicluster Engine For Kubernetes, classified under CWE-1357. CVSS score: 7.7/10. Published 2026-08-19.
- How severe is CVE-2026-75569?
- High severity. CVSS v3 base score is 7.7 out of 10.