CVE-2025-62596

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

State: Published
Severity: 7.3 High
Published: Nov 5, 2025
Updated: Nov 6, 2025
Reserved: Oct 16, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	7.3 High	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	GitHub_M

Weaknesses

CWE-61 UNIX Symbolic Link (Symlink) Following
CWE-363 Race Condition Enabling Link Following

Affected Products

Product	Versions
youkiyouki-dev	< 0.5.7Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.