CVE-2026-7309

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.

CVSS 3.1

4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-26)

CWE

CWE-426

Published

2026-04-28

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• redhat:openshift_container_platform

References

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

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