{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45807", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-13T08:19:32.604Z", "datePublished": "2026-06-26T20:57:13.891Z", "dateUpdated": "2026-06-26T20:57:13.891Z"}, "containers": {"cna": {"title": "Kestra: Path traversal via URL-encoded \"%2E%2E\" in execution and namespace file endpoints allows arbitrary file read", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/kestra-io/kestra/security/advisories/GHSA-3529-p4wf-xp79", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/kestra-io/kestra/security/advisories/GHSA-3529-p4wf-xp79"}], "affected": [{"vendor": "kestra-io", "product": "kestra", "versions": [{"version": "< 1.0.43", "status": "affected"}, {"version": ">= 1.1.0, < 1.3.19", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-26T20:57:13.891Z"}, "descriptions": [{"lang": "en", "value": "Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.43 and 1.3.19, several Kestra API endpoints accept a kestra:// URI from the client and pass it through StorageInterface.parentTraversalGuard before reading the underlying file from the local storage backend. The guard only inspects the literal URI.toString(), so a URL-encoded .. written as %2E%2E slips through. The downstream code then calls URI.getPath(), which decodes %2E%2E back to .., and the resulting path is handed to Paths.get(...) without normalization. The OS resolves the .. segments at open(2) time, so an authenticated user with a single execution can read any file the Kestra process has access to on the host filesystem (/etc/passwd, mounted secrets, other tenants' execution outputs, etc.). This vulnerability is fixed in 1.0.43 and 1.3.19."}], "source": {"advisory": "GHSA-3529-p4wf-xp79", "discovery": "UNKNOWN"}}}}

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