CVE-2026-62146

Cri-o: cri-o: sandbox state poisoning via pod annotations may expose runtime socket

Published Sep 30, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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.

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

No advisories available
History
Type Values Removed Values Added
First Time appeared Redhat openshift Container Platform
Vendors & Products Redhat openshift Container Platform
Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:5
Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:4 cpe:/a:redhat:openshift:4.16::el8
cpe:/a:redhat:openshift:4.16::el9
References
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Oct 30, 2026, 3:29 PM
Reserved
Jul 13, 2026, 11:29 AM
Status
Awaiting Analysis
Published
Sep 30, 2026, 12:17 PM
Modified
Oct 30, 2026, 4:17 PM