CVE-2025-54867 json
Youki Symlink Following Vulnerability
published last yr. modified 4mo ago also GHSA-j26p-6wx7-f3pw , EUVD-2025-24859
- cvss
- 7.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
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 0.5.5.
Patch / fix
- crates.io youki 0.5.5
- youki-dev youki 0.5.5
Is CVE-2025-54867 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | youki | <0.5.5 |
0.5.5 |
Affected products
- youki-dev youki
Classification
- Weakness
-
- CWE-61 UNIX Symbolic Link (Symlink) Following
References
-
github.com
/youki-dev/youki/commit/0d9b4f2aa5ceaf988f3eb568711d2acf0a4ace37
web, patch
-
github.com
/youki-dev/youki/security/advisories/GHSA-j26p-6wx7-f3pw
web, vendor-advisory
-
github.com
/youki-dev/youki/releases/tag/v0.5.5
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2025-54867
advisory
-
github.com
/youki-dev/youki
package
Sources
- CVE List CVE-2025-54867
- GitHub Advisory GHSA-j26p-6wx7-f3pw
- NVD CVE-2025-54867
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.