Description
A trust-boundary flaw in CRI-O's sandbox state persistence allows attacker-influenced pod metadata to overwrite CRI-O's own reserved sandbox bookkeeping; once reloaded as trusted after a restart, a later container recreate in that sandbox can expose a host-side runtime-management resource inside the container, enabling container escape.
Published: 2026-09-30
Score: 7.8 High
EPSS: n/a
KEV: No
AI Analysis

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Remediation

Vendor Workaround

There is no complete workaround; until a fix is available, administrators should restrict who can create/update pods and set arbitrary annotations via RBAC/admission policy, minimize unnecessary CRI-O restarts or node reboots and monitor for anomalous container mounts (e.g. under /dev/shm) following runtime restarts, then apply the vendor patch once released.

Tracking

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Advisories

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History

Wed, 30 Sep 2026 12:00:00 +0000

Type Values Removed Values Added
Description A trust-boundary flaw in CRI-O's sandbox state persistence allows attacker-influenced pod metadata to overwrite CRI-O's own reserved sandbox bookkeeping; once reloaded as trusted after a restart, a later container recreate in that sandbox can expose a host-side runtime-management resource inside the container, enabling container escape.
Title Cri-o: cri-o: sandbox state poisoning via pod annotations may expose runtime socket
First Time appeared Redhat
Redhat openshift
Weaknesses CWE-501
CPEs cpe:/a:redhat:openshift:4
Vendors & Products Redhat
Redhat openshift
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H'}


Subscriptions

Redhat Openshift
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-30T11:49:20.363Z

Reserved: 2026-07-13T11:29:50.979Z

Link: CVE-2026-62146

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-30T12:17:13.617

Modified: 2026-09-30T16:30:23.773

Link: CVE-2026-62146

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T13:30:17Z

Weaknesses