CVE-2025-62596

Description

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.

References

https://youtu.be/y1PaBzxwRWQ

https://youtu.be/tGseJW_uBB8

https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite/procfs

https://github.com/youki-dev/youki/security/advisories/GHSA-vf95-55w6-qmrf

https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS