# CVE-2025-62596

## Summary

- **CVE ID:** CVE-2025-62596
- **Severity:** HIGH
- **CVSS Score:** 7.3 (CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H)
- **CWE:** CWE-61, CWE-363
- **Published:** Nov 5, 2025
- **Last Modified:** Mar 12, 2026

## 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.

## Affected Products

- youki-dev — youki (< 0.5.7)

## References

- [CNA](https://github.com/youki-dev/youki/security/advisories/GHSA-vf95-55w6-qmrf)
- [CNA](https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a)
- [CNA](https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite/procfs)
- [CNA](https://youtu.be/tGseJW_uBB8)
- [CNA](https://youtu.be/y1PaBzxwRWQ)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.25%
- **EPSS Percentile:** 16.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-09._