What is CVE-2025-54867?

CVE-2025-54867 is a high-severity vulnerability in Youki-dev Youki, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 7.0/10. Published 2025-08-14.

How severe is CVE-2025-54867?

High severity. CVSS v3 base score is 7.0 out of 10.

Vulnerability in Youki-dev Youki

CVE-2025-54867

Youki is a container runtime written in Rust. Prior to version 0.5.5, if /proc and /sys in the rootfs are symbolic links, they can potentially be exploited to gain access to the host root filesystem. This issue has been patched in version…

EPSS: 0.000 (7.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Youki-dev Youki — versions < 0.5.5

Weakness classification (CWE)

CWE-61 — UNIX Symbolic Link (Symlink) Following

References

https://github.com/youki-dev/youki/security/advisories/GHSA-j26p-6wx7-f3pw (x_refsource_CONFIRM)
https://github.com/youki-dev/youki/commit/0d9b4f2aa5ceaf988f3eb568711d2acf0a4ace37 (x_refsource_MISC)
https://github.com/youki-dev/youki/releases/tag/v0.5.5 (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-54867?: CVE-2025-54867 is a high-severity vulnerability in Youki-dev Youki, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 7.0/10. Published 2025-08-14.
How severe is CVE-2025-54867?: High severity. CVSS v3 base score is 7.0 out of 10.