CVE-2025-62596

Nov. 6, 2025, 7:45 p.m.

7.3
High

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.

Product(s) Impacted

Vendor Product Versions
Youki
  • Youki
  • 0.5.6, <0.5.7

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-61
UNIX Symbolic Link (Symlink) Following
The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a youki youki 0.5.6 / / / / / / /
a youki youki <0.5.7 / / / / / / /

References

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

Tags

security-advisories@github.com
CWE-61
2025-11-06
CVE-2025-62596

CVSS Score

7.3 / 10

CVSS Data - 4.0

  • Attack Vector: LOCAL
  • Attack Complexity: LOW
  • Attack Requirements: PRESENT
  • Privileges Required: LOW
  • User Interaction: ACTIVE
  • Scope:
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH
  • Exploit Maturity: NOT_DEFINED

    • 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

    View Vector String

Timeline

Published: Nov. 6, 2025, 12:15 a.m.
Last Modified: Nov. 6, 2025, 7:45 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security-advisories@github.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.