CVE-2025-8766

A container privilege escalation flaw was found in certain Multi-Cloud Object Gateway Core images.

Published Mar 13, 2026 · updated Jul 15, 2026 · redhat openshift data foundation

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

Code

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No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

Mar 13, 2026 · NIST NVD
Detected
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
Jul 15, 2026 · NIST NVD
Updated
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

Affected

cpe redhat/openshift data foundation4.0

Sources

NIST NVDVulnerability recordCVE-2025-8766
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 aff
nvd.nist.gov