Vulnerability in Cloud-hypervisor
CVE-2026-27211
Cloud Hypervisor is a Virtual Machine Monitor for Cloud workloads. Versions 34.0 through 50.0 arevulnerable to arbitrary host file exfiltration (constrained by process privileges) when using virtio-block devices backed by raw images. A mal…
EPSS: 0.005 (39.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.
Affected products
- Cloud-hypervisor — versions >= 34.0, < 50.1
- Cloudhypervisor Cloud_hypervisor
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-27211?
- CVE-2026-27211 is a critical-severity vulnerability in Cloud-hypervisor, classified under External Control of File Name or Path. CVSS score: 10.0/10. Published 2026-02-21.
- How severe is CVE-2026-27211?
- Critical severity. CVSS v3 base score is 10.0 out of 10.