CVE-2026-76139: Red Hat Advanced Cluster Management For Kubernetes 2.11

High severity, CVSS 8.0. EPSS: 0.7% chance of exploitation in the next 30 days.

A flaw was found in acm-operator-bundle. The build process for this component downloads and runs a script from a remote source without verifying its authenticity or integrity. This script gains access to sensitive credentials, such as GitHub access tokens and registry passwords, used in the build environment. A remote attacker could exploit this vulnerability to inject malicious code, leading to unauthorized access to build resources and potential compromise of the resulting operator bundle.

Affected products

• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.11: before 1787704547 (fixed in 1787704547)
• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.13: before 1787712120 (fixed in 1787712120)
• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.14: before 1787704476 (fixed in 1787704476)
• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.15: before 1787738299 (fixed in 1787738299)
• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.16: before 1787711895 (fixed in 1787711895)
• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.17: before 1787704231 (fixed in 1787704231)

Published 2026-08-19. Last modified 2026-09-08.