CVE-2025-62161

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

Published Nov 5, 2025 CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-4g74-7cff-xcv8 youki container escape via "masked path" abuse due to mount race conditions
History
Type Values Removed Values Added
First Time appeared Youki-dev
Youki-dev youki
CPEs cpe:2.3:a:youki-dev:youki:*:*:*:*:*:rust:*:*
Vendors & Products Youki-dev
Youki-dev youki
Metrics cvssV3_1

{'score': 10.0, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Youki Project
Youki Project youki
Vendors & Products Youki Project
Youki Project youki
Type Values Removed Values Added
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.
Title youki container escape via "masked path" abuse due to mount race conditions
Weaknesses CWE-363
CWE-61
References
Metrics cvssV4_0

{'score': 7.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Nov 6, 2025, 9:20 PM
Reserved
Oct 7, 2025, 4:12 PM
Status
Analyzed
Published
Nov 6, 2025, 12:15 AM
Modified
Oct 19, 2026, 1:10 PM