CVE-2025-62596
youki container escape and denial of service due to arbitrary write gadgets and procfs write redirects
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.
INFO
Published Date :
Nov. 6, 2025, 12:15 a.m.
Last Modified :
Nov. 10, 2025, 5:58 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Youki to version 0.5.7 or later.
- Apply vendor patches for Youki.
- Validate the path resolution logic.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-62596.
| URL | Resource |
|---|---|
| https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a | Patch |
| https://github.com/youki-dev/youki/security/advisories/GHSA-vf95-55w6-qmrf | Vendor Advisory |
| https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite/procfs | Not Applicable |
| https://youtu.be/tGseJW_uBB8 | Not Applicable |
| https://youtu.be/y1PaBzxwRWQ | Not Applicable |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-62596 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-62596
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-62596 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-62596 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Nov. 10, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:youki-dev:youki:*:*:*:*:*:rust:*:* versions up to (excluding) 0.5.7 Added Reference Type GitHub, Inc.: https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a Types: Patch Added Reference Type GitHub, Inc.: https://github.com/youki-dev/youki/security/advisories/GHSA-vf95-55w6-qmrf Types: Vendor Advisory Added Reference Type GitHub, Inc.: https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite/procfs Types: Not Applicable Added Reference Type GitHub, Inc.: https://youtu.be/tGseJW_uBB8 Types: Not Applicable Added Reference Type GitHub, Inc.: https://youtu.be/y1PaBzxwRWQ Types: Not Applicable -
New CVE Received by [email protected]
Nov. 06, 2025
Action Type Old Value New Value 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. Added CVSS V4.0 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 Added CWE CWE-363 Added CWE CWE-61 Added Reference https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a Added Reference https://github.com/youki-dev/youki/security/advisories/GHSA-vf95-55w6-qmrf Added Reference https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite/procfs Added Reference https://youtu.be/tGseJW_uBB8 Added Reference https://youtu.be/y1PaBzxwRWQ