CVE-2026-7309: A flaw was found in the OpenShift Container Platform build system. A user with the `edit` ClusterRole can inject…
CVE-2026-7309 · Severity: medium · CVSS 4.3 · Published 2026-04-28
A flaw was found in the OpenShift Container Platform build system. A user with the `edit` ClusterRole can inject arbitrary environment variables, such as `LD_PRELOAD` or `http_proxy`, into `docker-build` containers through the `buildconfigs/instantiate` API. This incomplete fix for a previous vulnerability allows for information disclosure, specifically impacting the confidentiality of build traffic.
No. Junglewise Threat Intelligence has no report of CVE-2026-7309 being exploited in the wild.
How severe is CVE-2026-7309?
Medium severity, with a CVSS score of 4.3, published 28 April 2026.
Which products and versions are affected?
Redhat Openshift Container Platform. The advisory does not name versions.
Is there a fix for CVE-2026-7309?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-7309?
Check whether you run Redhat Openshift Container Platform. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.