CVE-2025-62161
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 4.0
- 7.3 HIGHCVSS: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/M
- EPSS
- 0.26% probability · 17th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-61, CWE-363
- Affected
- youki-dev/youki
- Source
- security-advisories@github.com
EPSS 0.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030aPatch
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8Vendor Advisory
- https://github.com/youki-dev/youki/security/advisories/GHSA-4g74-7cff-xcv8Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.