{"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"}}]}}