CVE-2025-62596: Youki-Dev Youki

Critical severity, CVSS 10.0. EPSS: 0.3% chance of exploitation in the next 30 days.

Youki is a container runtime written in Rust. In versions 0.5.6 and below, youki’s apparmor handling performs insufficiently strict write-target validation, and when combined with path substitution during pathname resolution, can allow writes to unintended procfs locations. While resolving a path component-by-component, a shared-mount race can substitute intermediate components and redirect the final target. This issue is fixed in version 0.5.7.

Affected products

• Youki-Dev Youki: before 0.5.7 (fixed in 0.5.7)

Published 2025-11-06. Last modified 2026-06-17.