What’s Vulnerable › Vulnerabilities

CVE-2026-7309: Openshift-controller-manager: openshift container platform: information disclosure via environment variable injection

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-28 · updated 2026-10-26
• Weakness: CWE-426

Description

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.

Affected products

• Red Hat OpenShift Container Platform 4.18: 4.0

References

• https://access.redhat.com/security/cve/CVE-2026-7309
• https://bugzilla.redhat.com/show_bug.cgi?id=2463451

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