# CVE-2025-54867: Youki: If /proc and /sys in the rootfs are symbolic links, they can potentially be exploited to gain access to the host root filesystem.

Source: https://junglewise.ai/threats/cve-2025-54867-youki-if-proc-and-sys-in-the-rootfs-are-symbolic-links-they-can  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-08-14  
License: CC BY 4.0 with a link back

CVE-2025-54867 · Severity: low · CVSS 3.1 · Published 2025-08-14

Youki: If /proc and /sys in the rootfs are symbolic links, they can potentially be exploited to gain access to the host root filesystem.

Technologies: [youki (crates.io)](https://junglewise.ai/threats/technologies/youki). Vendors: [crates.io](https://junglewise.ai/threats/vendors/crates-io).

## Quick answers

**Is CVE-2025-54867 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-54867 being exploited in the wild.

**How severe is CVE-2025-54867?** Low severity, with a CVSS score of 3.1, published 14 August 2025.

**Which products and versions are affected?** youki (crates.io) SEMVER:introduced=0,fixed=0.5.5.

**Is there a fix for CVE-2025-54867?** Yes. youki (crates.io): upgrade to 0.5.5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-54867?** Check whether you run youki (crates.io) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- youki (crates.io): upgrade to 0.5.5 or later

  ```sh
  cargo update -p youki
  ```


## Affected products

- youki (crates.io) SEMVER:introduced=0,fixed=0.5.5

## Identifiers

- CVE-2025-54867
- GHSA-j26p-6wx7-f3pw

## Related threats

- [youki container escape and denial of service due to arbitrary write gadgets and procfs write redirects](https://junglewise.ai/threats/cve-2025-62596-youki-container-escape-and-denial-of-service-due-to-arbitrary)
- [youki container escape via "masked path" abuse due to mount race conditions](https://junglewise.ai/threats/cve-2025-62161-youki-container-escape-via-masked-path-abuse-due-to-mount-race)