{"id":"CVE-2025-62596","state":"PUBLISHED","title":"youki container escape and denial of service due to arbitrary write gadgets and procfs write redirects","description":"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.","publishedAt":"2025-11-05T23:14:37.167Z","updatedAt":"2025-11-06T16:54:15.942Z","severity":{"score":7.3,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["youki-dev youki"],"affected":[{"vendor":"youki-dev","product":"youki","versions":[{"version":"< 0.5.7","status":"affected"}]}],"references":["https://github.com/youki-dev/youki/security/advisories/GHSA-vf95-55w6-qmrf","https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a","https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite/procfs","https://youtu.be/tGseJW_uBB8","https://youtu.be/y1PaBzxwRWQ"],"weaknesses":["CWE-61","CWE-363"],"ingestedAt":"2026-10-29T20:09:48.677Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/62xxx/CVE-2025-62596.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-62596","state":"PUBLISHED","datePublished":"2025-11-05T23:14:37.167Z","dateUpdated":"2025-11-06T16:54:15.942Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-10-16T19:24:37.266Z"},"containers":{"cna":{"title":"youki container escape and denial of service due to arbitrary write gadgets and procfs write redirects","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"youki-dev","product":"youki","versions":[{"version":"< 0.5.7","status":"affected"}]}],"references":[{"url":"https://github.com/youki-dev/youki/security/advisories/GHSA-vf95-55w6-qmrf","name":"https://github.com/youki-dev/youki/security/advisories/GHSA-vf95-55w6-qmrf","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a","name":"https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a","tags":["x_refsource_MISC"]},{"url":"https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite/procfs","name":"https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite/procfs","tags":["x_refsource_MISC"]},{"url":"https://youtu.be/tGseJW_uBB8","name":"https://youtu.be/tGseJW_uBB8","tags":["x_refsource_MISC"]},{"url":"https://youtu.be/y1PaBzxwRWQ","name":"https://youtu.be/y1PaBzxwRWQ","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"ACTIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-61","lang":"en","description":"CWE-61: UNIX Symbolic Link (Symlink) Following","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-363","lang":"en","description":"CWE-363: Race Condition Enabling Link Following","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-11-05T23:14:37.167Z"},"source":{"advisory":"GHSA-vf95-55w6-qmrf","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-11-06T16:54:08.273724Z","id":"CVE-2025-62596","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-11-06T16:54:15.942Z"}}]}}}