CVE-2026-7309

MEDIUM EPSS 7.7%

Published Apr 28, 20262mo ago · Modified Jun 17, 20261w ago

4.3 CVSS 3.1

Medium

Published Apr 28, 2026 2mo ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

4.3

Exploitability

2.8

Impact

1.4

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Unchanged

Confidentiality Low

Integrity None

Availability None

Threat Intelligence

EPSS Exploit Probability

7.7% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-426

Affected Products 1

Vendor	Product	Version	Range
redhat	openshift_container_platform	4.0	any

References 2

access.redhat.com https://access.redhat.com/security/cve/CVE-2026-7309

Vendor Advisory
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2463451

Issue TrackingVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.