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CVE-2026-7309

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

Published: Apr 28, 2026Updated: Apr 28, 2026 Sources: CVE List NVD
NVD MITRE
4.3CVSS
MEDIUM

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None

Weaknesses

CWE-426

Affected Products

Red Hat OpenShift Container Platform 4
Red Hat

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Workaround Available

MITRE ATT&CK

1 technique
Persistence
View detailed technique mapping

References

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

Timeline

Published
Apr 28, 2026
Last Updated
Apr 28, 2026

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