{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-54069", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-11T18:24:35.097Z", "datePublished": "2026-06-24T21:17:02.466Z", "dateUpdated": "2026-06-25T13:55:20.853Z"}, "containers": {"cna": {"title": "SiYuan: Unauthenticated Admin API Access via Blanket chrome-extension:// Origin Allowlist", "problemTypes": [{"descriptions": [{"cweId": "CWE-346", "lang": "en", "description": "CWE-346: Origin Validation Error", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.2, "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3"}], "affected": [{"vendor": "siyuan-note", "product": "siyuan", "versions": [{"version": "< 3.7.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-24T21:17:02.466Z"}, "descriptions": [{"lang": "en", "value": "SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan Note's kernel HTTP server unconditionally trusts all chrome-extension:// origins, granting RoleAdministrator access to every installed browser extension without any authentication. Combined with the default empty AccessAuthCode on desktop installs, any Chrome/Chromium extension -- including a compromised legitimate extension via supply chain attack -- can make fully authenticated admin API calls to the SiYuan kernel at 127.0.0.1:6806, enabling data exfiltration, stored XSS injection, and configuration tampering. This vulnerability is fixed in 3.7.0."}], "source": {"advisory": "GHSA-hvr9-72v2-fff3", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-25T13:54:50.828436Z", "id": "CVE-2026-54069", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-25T13:55:20.853Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"cna": {"title": "SiYuan: Unauthenticated Admin API Access via Blanket chrome-extension:// Origin Allowlist", "source": {"advisory": "GHSA-hvr9-72v2-fff3", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 9.2, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "userInteraction": "NONE", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH"}}], "affected": [{"vendor": "siyuan-note", "product": "siyuan", "versions": [{"status": "affected", "version": "< 3.7.0"}]}], "references": [{"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3", "name": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan Note's kernel HTTP server unconditionally trusts all chrome-extension:// origins, granting RoleAdministrator access to every installed browser extension without any authentication. Combined with the default empty AccessAuthCode on desktop installs, any Chrome/Chromium extension -- including a compromised legitimate extension via supply chain attack -- can make fully authenticated admin API calls to the SiYuan kernel at 127.0.0.1:6806, enabling data exfiltration, stored XSS injection, and configuration tampering. This vulnerability is fixed in 3.7.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-346", "description": "CWE-346: Origin Validation Error"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-24T21:17:02.466Z"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-54069", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-06-25T13:54:50.828436Z"}}}], "references": [{"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3", "tags": ["exploit"]}], "providerMetadata": {"shortName": "CISA-ADP", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "dateUpdated": "2026-06-25T13:54:29.973Z"}}]}, "cveMetadata": {"cveId": "CVE-2026-54069", "state": "PUBLISHED", "dateUpdated": "2026-06-24T21:17:02.466Z", "dateReserved": "2026-06-11T18:24:35.097Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-06-24T21:17:02.466Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.7.0)"}}], "enrichment": {"confidence": 84.0, "confidence_source": "matching", "scores": [{"score": 84.0, "source": "matching"}]}, "original": {"product": "siyuan", "source": "cna", "vendor": "siyuan-note"}, "product": "siyuan", "vendor": "siyuan"}], "created": "2026-06-24T23:00:06.656777+00:00", "updated": "2026-06-25T13:15:03.619161+00:00", "vendors": ["siyuan", "siyuan$PRODUCT$siyuan"]}