CVE-2025-8766

Medium

Description

A container privilege escalation flaw was found in certain Multi-Cloud Object Gateway Core images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container

SeverityMedium
CVSS6.4
Exploit probability—
ProductRedhat Openshift Data Foundation
PublishedMar 13, 2026
First seenMar 13, 2026
Weakness typeCWE-276CWE-276

How to fix

Affected products

ProductAffected versionsFixed in
redhat openshift_data_foundation4.0—

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CVE-2025-8766 · Redhat Openshift Data Foundation · Dark Radar