{"id":"CVE-2025-62596","revision":null,"records":[{"revision":"7c72f4ab26cf46dd8ebd1593a6e86610","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-62596","aliases":[],"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.","state":0,"publishedAt":"2025-11-05T23:14:37.167+00:00","modifiedAt":"2025-11-06T16:54:15.942+00:00","affected":[{"ecosystem":"Vendor product","name":"youki","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"youki-dev\",\n                    \"product\": \"youki\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.5.7\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 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","score":7.3,"severity":"HIGH"}],"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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-62596","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-62596","identifiers":["CVE-2025-62596"]},"retained":false,"historicalAffected":[]},{"revision":"864591bfeda343ae8f1c51b637b8ef73","observedAt":"2026-11-07T03:28:10.768+00:00","statement":{"source":"euvd","id":"EUVD-2025-37938","aliases":["CVE-2025-62596","GHSA-vf95-55w6-qmrf"],"title":"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…","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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 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","score":7.3,"severity":null}],"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"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-37938","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Nov 5, 2025, 11:14:37 PM","dateUpdated":"Nov 6, 2025, 4:54:15 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2025-37938","identifiers":["EUVD-2025-37938","CVE-2025-62596","GHSA-vf95-55w6-qmrf"]},"retained":false,"historicalAffected":[]},{"revision":"6892ad2712474a5691d4e5d048bfaa69","observedAt":"2026-10-25T03:17:29.935+00:00","statement":{"source":"nvd","id":"CVE-2025-62596","aliases":[],"title":"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…","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.","state":0,"publishedAt":"2025-11-06T00:15:37.817+00:00","modifiedAt":"2026-10-19T13:10:00.11+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":7.3,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H","score":10,"severity":"CRITICAL"}],"references":["https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a","https://github.com/youki-dev/youki/security/advisories/GHSA-vf95-55w6-qmrf","https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite/procfs","https://youtu.be/tGseJW_uBB8","https://youtu.be/y1PaBzxwRWQ"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-62596","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-61","CWE-363"],"productCriteria":["cpe:2.3:a:youki-dev:youki:*:*:*:*:*:rust:*:*"],"sourceDates":{"published":"2025-11-06T00:15:37.817","lastModified":"2026-10-19T13:10:00.110"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2025-62596","identifiers":["CVE-2025-62596"]},"retained":false,"historicalAffected":[]},{"revision":"4cb8f59b90764bf9983acb0a9fddf154","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"GHSA-vf95-55w6-qmrf","aliases":["CVE-2025-62596"],"title":"youki container escape and denial of service due to arbitrary write gadgets and procfs write redirects","description":"### Impact ###\n\nyouki’s apparmor handling performs insufficiently strict write-target validation, which—combined with path substitution during pathname resolution—can allow writes to unintended procfs locations.\n\n**Weak write-target check**\nyouki only verifies that the destination lies somewhere under procfs. As a result, a write intended for `/proc/self/attr/apparmor/exec` can succeed even if the path has been redirected to `/proc/sys/kernel/hostname`(which is also in procfs).\n\n**Path substitution**\nWhile resolving a path component-by-component, a shared-mount race can substitute intermediate components and redirect the final target.\n\nThis is a different project, but the core logic is similar to the CVE in runc. Issues were identified in runc, and verification was also conducted in youki to confirm the problems.\nhttps://github.com/opencontainers/runc/security/advisories/GHSA-cgrx-mc8f-2prm\n\n### Credits ###\n\nThanks to Li Fubang (@lifubang from acmcoder.com, CIIC) and Tõnis Tiigi (@tonistiigi from Docker) for both independently discovering runc's original vulnerability, as well as Aleksa Sarai (@cyphar from SUSE) for the original research into this class of security issues and solutions.","state":0,"publishedAt":"2025-11-05T18:45:18+00:00","modifiedAt":"2025-11-15T02:25:28+00:00","affected":[{"ecosystem":"crates.io","name":"youki","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.5.7"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H","score":null,"severity":null},{"system":"CVSS_V4","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","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/opencontainers/runc/security/advisories/GHSA-cgrx-mc8f-2prm","https://github.com/youki-dev/youki/security/advisories/GHSA-vf95-55w6-qmrf","https://nvd.nist.gov/vuln/detail/CVE-2025-62596","https://github.com/youki-dev/youki/commit/5886c91073b9be748bd8d5aed49c4a820548030a","https://github.com/youki-dev/youki","https://pkg.go.dev/github.com/cyphar/filepath-securejoin/pathrs-lite/procfs","https://youtu.be/tGseJW_uBB8","https://youtu.be/y1PaBzxwRWQ"],"sourceUrl":"https://github.com/advisories/GHSA-vf95-55w6-qmrf","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-vf95-55w6-qmrf","identifiers":["GHSA-vf95-55w6-qmrf","CVE-2025-62596"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-08T23:02:15.9754883+00:00","complete":true,"records":1769,"lastAttemptAt":"2026-11-08T23:02:15.9754883+00:00","lastSuccessAt":"2026-11-08T23:02:16.1185375+00:00","error":null,"lastVerifiedAt":"2026-11-08T23:02:16.1185396+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-eaa64dac63caa79c8d4905619258c41c51b39e461b996124e1a21b5e85e7e738-0ee53194438b774350db8ba2be9961094a7945659f4bca5c09ae0ef23c2c3f0c","complete":true,"records":421267,"lastAttemptAt":"2026-11-08T23:02:15.4905694+00:00","lastSuccessAt":"2026-11-08T23:02:15.4057062+00:00","error":null,"lastVerifiedAt":"2026-11-08T23:02:15.4905694+00:00","snapshotPublishedAt":"2026-11-08T22:18:37+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-64ec014845cf41e0b44c7812575dade1","complete":false,"records":13654,"lastAttemptAt":"2026-11-08T23:11:05.5177476+00:00","lastSuccessAt":"2026-11-08T23:11:05.509+00:00","error":null,"lastVerifiedAt":"2026-11-08T23:11:05.509+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13457,"expectedIdentifiers":13706,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-08T23:02:15.9754883+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-08T23:02:15.9754883+00:00","lastSuccessAt":"2026-11-08T23:02:16.1192591+00:00","error":null,"lastVerifiedAt":"2026-11-08T23:02:16.1192597+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-bbd1082fa13b4aff99c01e332b64e44f","complete":true,"records":13666,"lastAttemptAt":"2026-11-08T23:02:17.0620293+00:00","lastSuccessAt":"2026-11-08T23:02:17.059+00:00","error":null,"lastVerifiedAt":"2026-11-08T23:02:17.059+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13706,"expectedIdentifiers":13706,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-980593e6977a6d1b4fb1eed5a1ffe88a468736f89f0a06f710924ad59132c023","complete":true,"records":9914,"lastAttemptAt":"2026-11-08T23:02:15.8370588+00:00","lastSuccessAt":"2026-11-08T11:07:07.068788+00:00","error":null,"lastVerifiedAt":"2026-11-08T23:02:15.8370588+00:00","snapshotPublishedAt":"2026-11-08T11:02:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-fde804134ecdda0ddd5ff5c26ee1fff5a6fa659311f7ef2e51c6ad54964db0e2","complete":true,"records":1971,"lastAttemptAt":"2026-11-08T23:02:15.64043+00:00","lastSuccessAt":"2026-11-06T19:03:17.0399903+00:00","error":null,"lastVerifiedAt":"2026-11-08T23:02:15.64043+00:00","snapshotPublishedAt":"2026-11-06T18:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-964c14035e6f0f6478b2870fad6a7ef9f6045876d4a12af2c2e514521e54b6af","complete":true,"records":3055,"lastAttemptAt":"2026-11-08T23:02:15.942926+00:00","lastSuccessAt":"2026-11-08T11:07:12.1927025+00:00","error":null,"lastVerifiedAt":"2026-11-08T23:02:15.942926+00:00","snapshotPublishedAt":"2026-11-08T11:02:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-f8647d7ba64b1ba0dfdc7130944766d5b36d5b77d18fff0c79e651a4cff3c2b9","complete":true,"records":231293,"lastAttemptAt":"2026-11-08T23:02:15.7372001+00:00","lastSuccessAt":"2026-11-08T11:06:56.2918717+00:00","error":null,"lastVerifiedAt":"2026-11-08T23:02:15.7372001+00:00","snapshotPublishedAt":"2026-11-08T11:02:50+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}