HIGH

CVE-2026-16460

CVSS v3

7.4

HIGH

EPSS Score

—

exploit probability

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-16460 yet.

Full record on NVD

Description

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.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2026-10-19
Last Modified: 2026-10-19

Frequently asked questions

What is CVE-2026-16460?

Is CVE-2026-16460 actively exploited?

Active exploitation of CVE-2026-16460 has not been confirmed.

What is the CVSS score for CVE-2026-16460?

CVE-2026-16460 has a CVSS v3 base score of 7.4 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

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