CVE-2026-16460

A flaw was found in bootc and ostree. Already-staged deployments are finalized without revalidating the deployment's container image against the current containers signature policy. Unsigned OS content staged under a prior permissive policy can remain bootable after policy is hardened to reject unsigned images, leading to full host compromise on reboot.

Score

CVSS 3.1 7.4 High

Status

Awaiting Analysis - secalert@redhat.com

Published

2026-10-19

Last modified

2026-10-21

Weaknesses

CWE-345

Affected products

• Enterprise Linux (Redhat)
• Hummingbird (Redhat)
• Openshift (Redhat)

References

• https://access.redhat.com/security/cve/CVE-2026-16460
• https://bugzilla.redhat.com/show_bug.cgi?id=2503167