What’s Vulnerable › Vulnerabilities

CVE-2025-62161: youki container escape via "masked path" abuse due to mount race conditions

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-06 · updated 2026-10-19
• Weakness: CWE-61

Description

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.

Affected products

• youki-dev youki: before 0.5.7 — fixed in 0.5.7

How to fix

Upgrade to a fixed version: youki-dev youki 0.5.7. Check the vendor advisory for mitigations.

References

• https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a
• https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8
• https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8
• https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8
• https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8
• https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8
• https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8
• https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8
• https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8

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