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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.

PUBLISHED Reserved 2026-04-28 | Published 2026-04-28 | Updated 2026-04-28 | Assigner redhat




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

Problem types

Untrusted Search Path

Product status

Default status
affected

Timeline

2026-03-03:Reported to Red Hat.
2026-04-28:Made public.

Credits

Red Hat would like to thank Rohit Sanjay Khandke for reporting this issue.

References

access.redhat.com/security/cve/CVE-2026-7309 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2463451 (RHBZ#2463451) issue-tracking

cve.org (CVE-2026-7309)

nvd.nist.gov (CVE-2026-7309)

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