CVE-2026-76139 Supply chain in Red Hat Advanced Cluster Management for Kubernetes 2.11
Attackers can inject malicious code via unpinned remote scripts during build, compromising operator bundles and exposing build credentials.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76139?
CVE-2026-76139 is a high-severity vulnerability in Red Hat Advanced Cluster Management for Kubernetes 2.11, published on 19 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-829
Which versions are affected by CVE-2026-76139?
How do I fix CVE-2026-76139?
No fix has been published for CVE-2026-76139 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-76139 being exploited?
There is no known exploitation of CVE-2026-76139 in the wild and no public exploit code.
Sources
Also known as GHSA-37hx-9chj-hc3m.