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VulnerabilityPublished Updated

CVE-2026-62146: Red Hat OpenShift Container Platform 4.16 · Trust Boundary Violation

Affects Red Hat OpenShift Container Platform 4.16Source CVE Database V5

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Not known to be exploited · CVSS 7.8 High.

Data as of 13 Nov 2026, 23:54 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.17.8
EPSS
0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 14 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat OpenShift Container Platform 4.16cri-oAffected–Fixed in–
Red Hat OpenShift Container Platform 5cri-oAffected–Fixed in–

AI-suggested

There is currently no complete workaround. Until a vendor patch is available, administrators should restrict pod creation and updates that allow setting arbitrary annotations via RBAC and admission policies. Minimizing unnecessary CRI-O restarts or node reboots reduces exposure windows. Monitoring for anomalous container mounts, such as unexpected mounts under /dev/shm following runtime restarts, is recommended. Apply the official vendor patch once it is released to fully remediate the vulnerability.

Description

CVE-2026-62146 is a trust-boundary vulnerability in CRI-O's sandbox state persistence used by Red Hat OpenShift Container Platform 4.16. It allows attacker-controlled pod metadata to overwrite CRI-O's reserved sandbox bookkeeping data. After a CRI-O restart, this corrupted state is trusted, enabling a container recreate operation to expose a host-side runtime-management resource inside the container, leading to container escape.

References

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