{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54066","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-11T18:24:35.097Z","datePublished":"2026-06-24T21:13:25.461Z","dateUpdated":"2026-06-25T12:33:20.102Z"},"containers":{"cna":{"title":"SiYuan: Path Traversal via Double URL Encoding in /assets/*path (publish mode 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"}]},{"descriptions":[{"cweId":"CWE-23","lang":"en","description":"CWE-23: Relative Path Traversal","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1188","lang":"en","description":"CWE-1188: Insecure Default Initialization of Resource","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-p4m3-mgmm-c664","tags":["x_refsource_CONFIRM"],"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-p4m3-mgmm-c664"}],"affected":[{"vendor":"siyuan-note","product":"siyuan","versions":[{"version":"< 3.7.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-06-24T21:13:25.461Z"},"descriptions":[{"lang":"en","value":"SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the patch for CVE-2026-41894 (\"Path Traversal via Double URL Encoding\") sanitized the /export/ route but the identical root cause remains in the /assets/*path route. In publish mode (anonymous read-only HTTP endpoint, default port 6808), an unauthenticated remote attacker can read arbitrary files inside WorkspaceDir — including conf/conf.json (which contains the AccessAuthCode SHA256 hash, API token, and sync keys), temp/siyuan.db, temp/blocktree.db, and siyuan.log — by double-URL-encoding .. segments. This vulnerability is fixed in 3.7.0."}],"source":{"advisory":"GHSA-p4m3-mgmm-c664","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-p4m3-mgmm-c664","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-25T12:33:17.088814Z","id":"CVE-2026-54066","options":[{"Exploitation":"poc"},{"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":"2026-06-25T12:33:20.102Z"}}]}}