CVE-2025-62596: Youki is a container runtime written in Rust

Q: How do I fix CVE-2025-62596?

youki: upgrade to 0.5.7. Exact commands for each OS are on this page.

Q: Is CVE-2025-62596 being exploited?

CVE-2025-62596 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-62596 affect?

CVE-2025-62596 affects youki. Severity is critical (CVSS 10.0). Youki is a container runtime written in Rust. In versions 0.5.6 and below, youki’s apparmor handling performs insufficiently strict write-target validation, and when combined with path substitution during pathname resolution, can allow writ

Q: How urgent is CVE-2025-62596?

Priority 45/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 10.0REMOTEUPGRADE

CVE-2025-62596 is a critical-severity flaw (CVSS 10.0) affecting youki. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Youki is a container runtime written in Rust. In versions 0.5.6 and below, youki’s apparmor handling performs insufficiently strict write-target validation, and when combined with path substitution during pathname resolution, can allow writes to unintended procfs locations. While resolving a path component-by-component, a shared-mount race can substitute intermediate components and redirect the final target. This issue is fixed in version 0.5.7.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-61, CWE-363
Published	2025-11-06
Last modified	2026-10-19

Publisher (CNA): GitHub, Inc. · Vendor: youki-dev

Last updated 2026-10-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-06 00:15 UTCPublished CVE record published
2026-10-19 13:10 UTCUpdated Record last modified

youki-dev youki UPGRADE

Affected: < 0.5.7

Fixed in: 0.5.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy youki || rpm -q youki || youki --version

2. UPGRADE to 0.5.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade youki

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade youki

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-62596?

youki: upgrade to 0.5.7. Exact commands for each OS are on this page.

Is CVE-2025-62596 being exploited?

CVE-2025-62596 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-62596 affect?

CVE-2025-62596 affects youki. Severity is critical (CVSS 10.0). Youki is a container runtime written in Rust. In versions 0.5.6 and below, youki’s apparmor handling performs insufficiently strict write-target validation, and when combined with path substitution during pathname resolution, can allow writ

How urgent is CVE-2025-62596?

Priority 45/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-62161 CRITICAL 10.0 UPGRADE Youki is a container runtime written in Rust
CVE-2025-54867 HIGH 7.0 UPGRADE Youki is a container runtime written in Rust

References

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