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CVE-2025-62161

youki container escape via "masked path" abuse due to mount race conditions

Youki is a container runtime written in Rust. In versions 0.5.6 and below, the initial validation of the source /dev/null is insufficient, allowing container escape when youki utilizes bind mounting the container's /dev/null as a file mask. This issue is fixed in version 0.5.7.

CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed
Vendors
Youki-dev Youki Project
Products
Youki Youki
CVE-2025-62596

youki container escape and denial of service due to arbitrary write gadgets and procfs write redirects

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.

CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed
Vendors
Youki-dev Youki Project
Products
Youki Youki
CVE-2025-54867

Youki Symlink Following Vulnerability

Youki is a container runtime written in Rust. Prior to version 0.5.5, if /proc and /sys in the rootfs are symbolic links, they can potentially be exploited to gain access to the host root filesystem. This issue has been patched in version 0.5.5.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Vendors
Youki-dev Youki Project
Products
Youki Youki