CVE-2026-77176
A flaw was found in Kata Containers. In configurations utilizing genpolicy for Confidential Containers guest protection, a malicious host operator can exploit insufficient validation of CreateContainer mount and storage rules. This allows them to mount arbitrary container-rootfs paths over sensitive host locations or provision arbitrary content, potentially exposing confidential information or enabling the acceptance of attacker-controlled input.
CSIRTS triage
- What
- Insufficient validation of createcontainer mount and storage rules in genpolicy allows privilege escalation or container escape.
- Who is affected
- Kata containers deployments using genpolicy for container creation.
- Urgency
- High severity (CVSS 8.1); escape or privilege escalation from containers is a critical concern.
- Action
- Apply security update for CVE-2026-77176 to kata-containers immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.41% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 34% of all EPSS-scored CVEs.
Advisory coverage (2)
External references
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[](https://www.csirts.com/cve/CVE-2026-77176)