{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-42574", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-28T17:26:12.085Z", "datePublished": "2026-05-09T19:24:48.497Z", "dateUpdated": "2026-05-11T17:11:40.244Z"}, "containers": {"cna": {"title": "apko dirFS has a symlink-following path traversal that allows multiple entry points to escape the build root", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-59", "lang": "en", "description": "CWE-59: Improper Link Resolution Before File Access ('Link Following')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/chainguard-dev/apko/security/advisories/GHSA-qq3r-w4hj-gjp6", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/chainguard-dev/apko/security/advisories/GHSA-qq3r-w4hj-gjp6"}, {"name": "https://github.com/chainguard-dev/apko/pull/2187", "tags": ["x_refsource_MISC"], "url": "https://github.com/chainguard-dev/apko/pull/2187"}, {"name": "https://github.com/chainguard-dev/apko/commit/f5a96e1299ac81c7ea9441705ec467688086f442", "tags": ["x_refsource_MISC"], "url": "https://github.com/chainguard-dev/apko/commit/f5a96e1299ac81c7ea9441705ec467688086f442"}, {"name": "https://github.com/chainguard-dev/apko/releases/tag/v1.2.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/chainguard-dev/apko/releases/tag/v1.2.5"}], "affected": [{"vendor": "chainguard-dev", "product": "apko", "versions": [{"version": ">= 0.14.8, < 1.2.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-09T19:24:48.497Z"}, "descriptions": [{"lang": "en", "value": "apko allows users to build and publish OCI container images built from apk packages. From version 0.14.8 to before version 1.2.5, a crafted .apk could install a TypeSymlink tar entry whose target pointed outside the build root, and a subsequent directory-creation or file-write entry in the same or later archive could traverse that symlink to reach host paths the build user could write to. This issue has been patched in version 1.2.5."}], "source": {"advisory": "GHSA-qq3r-w4hj-gjp6", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-11T17:09:56.626237Z", "id": "CVE-2026-42574", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-11T17:11:40.244Z"}}]}}

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{}

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