CVE-2026-62146 Red Hat CVE debrief

Who should care

Defenders responsible for container environments using CRI-O should assess potential exposure and prioritize verification and remediation efforts. This includes verifying CRI-O versions and configurations, reviewing container environments for potential impact, and prioritizing remediation efforts based on the vulnerability's severity and potential operational impacts. Security teams and vulnerability management teams should also review the vulnerability's

Why it matters

Defenders should prioritize verifying exposure and assessing potential impact in container environments using CRI-O, focusing on verifying versions, configurations, and potential container escapes.

• Potential container escape and host-side runtime-management resource exposure
• Verification of CRI-O versions and configurations for vulnerability
• Assessment of container environments for potential impact
• Remediation prioritization for affected systems

Technical summary

The vulnerability allows attacker-influenced pod metadata to overwrite CRI-O's reserved sandbox bookkeeping, potentially enabling container escape when a container is recreated in the affected sandbox. This flaw in CRI-O's sandbox state persistence can expose host-side runtime-management resources inside the container, emphasizing the need for defenders to assess potential exposure and prioritize verification and remediation efforts in container environments using CRI-O. The vulnerability's technical details highlight the importance of verifying CRI-O versions and configurations to prevent potential container escapes.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact, focusing on container environments using CRI-O.

Recommended defensive actions

• Verify CRI-O versions and configurations for potential exposure
• Assess container environments for vulnerability
• Review and update CRI-O to patched versions
• Monitor container recreation and runtime management resources
• Perform a thorough review of container environments to identify potential exposure
• Implement compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions and retest remediated assets to ensure the vulnerability is fully remediated

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information from vendor sources, such as Red Hat errata and security information, may be necessary for comprehensive assessment. Defenders should verify CRI-O versions and configurations, review container environments for potential impact, and prioritize remediation efforts based on the vulnerability's severity and potential operational impacts.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.