CVE-2025-62596

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

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, 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-vf95-55w6-qmrf youki container escape and denial of service due to arbitrary write gadgets and procfs write redirects
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:N/I:H/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, '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, 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.
Title youki container escape and denial of service due to arbitrary write gadgets and procfs write redirects
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, 4:54 PM
Reserved
Oct 16, 2025, 7:24 PM
Status
Analyzed
Published
Nov 6, 2025, 12:15 AM
Modified
Oct 19, 2026, 1:10 PM