CVE-2026-13218: Kubevirt: kubevirt: symlink following in writetocachedfile allows host file overwrite from virt-launcher

Overview

Severity

Medium (CVSS 4.2)

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L

Exploit Status

Not Exploited

Patch Tuesday

2026-Jun

Released

2026-07-01

Last Updated

2026-09-24

EPSS Score

0.14% (percentile: 2.7%)

Affected Products (4)

Other

• 21420-17084
• 21648-17084
• 21835-17084
• 21902-17084

Security Updates (1)

• Security Update

Revision History

• 2026-07-01: Information published.
• 2026-08-12: Information published.
• 2026-09-09: Information published.
• 2026-09-23: Information published.
• 2026-09-24: Information published.