Youki is a container runtime written in Rust. In versions 0.5.6 and below, the initial validation of the source /dev/null is insufficient, allowing container escape when youki utilizes bind mounting the container's /dev/null as a file mask. This issue is fixed in version 0.5.7.
Fix
Patch, vendor advisory and mitigation references on NVD 9
- https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a Patch
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.3 · youki-devNVD modified 2026-10-19 13:10
Affected (CPE criteria) 1
cpe:2.3:a:youki-dev:youki:*:*:*:*:*:rust:*:*
References 9
- https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a Patch
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8 Vendor Advisory