CVE-2026-32815

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-32815", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-16T17:35:36.696Z", "datePublished": "2026-03-19T21:39:31.365Z", "dateUpdated": "2026-03-20T20:22:46.364Z"}, "containers": {"cna": {"title": "SiYuan: Cross-Origin WebSocket Hijacking via Authentication Bypass \u2014 Unauthenticated Information Disclosure", "problemTypes": [{"descriptions": [{"cweId": "CWE-287", "lang": "en", "description": "CWE-287: Improper Authentication", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xp2m-98x8-rpj6", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xp2m-98x8-rpj6"}, {"name": "https://github.com/siyuan-note/siyuan/commit/1e370e37359778c0932673e825182ff555b504a3", "tags": ["x_refsource_MISC"], "url": "https://github.com/siyuan-note/siyuan/commit/1e370e37359778c0932673e825182ff555b504a3"}, {"name": "https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1"}], "affected": [{"vendor": "siyuan-note", "product": "siyuan", "versions": [{"version": "< 3.6.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-19T21:39:31.365Z"}, "descriptions": [{"lang": "en", "value": "SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the WebSocket endpoint (/ws) allows unauthenticated connections when specific URL parameters are provided (?app=siyuan&id=auth&type=auth). This bypass, intended for the login page to keep the kernel alive, allows any external client \u2014 including malicious websites via cross-origin WebSocket \u2014 to connect and receive all server push events in real-time. These events leak sensitive document metadata including document titles, notebook names, file paths, and all CRUD operations performed by authenticated users. Combined with the absence of Origin header validation, a malicious website can silently connect to a victim's local SiYuan instance and monitor their note-taking activity. This issue has been fixed in version 3.6.1."}], "source": {"advisory": "GHSA-xp2m-98x8-rpj6", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-20T20:22:00.968704Z", "id": "CVE-2026-32815", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"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": "2026-03-20T20:22:46.364Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"cna": {"title": "SiYuan: Cross-Origin WebSocket Hijacking via Authentication Bypass \u2014 Unauthenticated Information Disclosure", "source": {"advisory": "GHSA-xp2m-98x8-rpj6", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW"}}], "affected": [{"vendor": "siyuan-note", "product": "siyuan", "versions": [{"status": "affected", "version": "< 3.6.1"}]}], "references": [{"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xp2m-98x8-rpj6", "name": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xp2m-98x8-rpj6", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/siyuan-note/siyuan/commit/1e370e37359778c0932673e825182ff555b504a3", "name": "https://github.com/siyuan-note/siyuan/commit/1e370e37359778c0932673e825182ff555b504a3", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1", "name": "https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the WebSocket endpoint (/ws) allows unauthenticated connections when specific URL parameters are provided (?app=siyuan&id=auth&type=auth). This bypass, intended for the login page to keep the kernel alive, allows any external client \u2014 including malicious websites via cross-origin WebSocket \u2014 to connect and receive all server push events in real-time. These events leak sensitive document metadata including document titles, notebook names, file paths, and all CRUD operations performed by authenticated users. Combined with the absence of Origin header validation, a malicious website can silently connect to a victim's local SiYuan instance and monitor their note-taking activity. This issue has been fixed in version 3.6.1."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-287", "description": "CWE-287: Improper Authentication"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-19T21:39:31.365Z"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-32815", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-20T20:22:00.968704Z"}}}], "providerMetadata": {"shortName": "CISA-ADP", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "dateUpdated": "2026-03-20T20:22:37.527Z"}}]}, "cveMetadata": {"cveId": "CVE-2026-32815", "state": "PUBLISHED", "dateUpdated": "2026-03-19T21:39:31.365Z", "dateReserved": "2026-03-16T17:35:36.696Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-03-19T21:39:31.365Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "siyuan", "vendor": "siyuan-note", "versions": [{"status": "affected", "version": "< 3.6.1"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*", "matchCriteriaId": "E1AA6470-222A-4841-A487-DF65F9859780", "versionEndExcluding": "3.6.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the WebSocket endpoint (/ws) allows unauthenticated connections when specific URL parameters are provided (?app=siyuan&id=auth&type=auth). This bypass, intended for the login page to keep the kernel alive, allows any external client \u2014 including malicious websites via cross-origin WebSocket \u2014 to connect and receive all server push events in real-time. These events leak sensitive document metadata including document titles, notebook names, file paths, and all CRUD operations performed by authenticated users. Combined with the absence of Origin header validation, a malicious website can silently connect to a victim's local SiYuan instance and monitor their note-taking activity. This issue has been fixed in version 3.6.1."}, {"lang": "es", "value": "SiYuan es un sistema de gesti\u00f3n de conocimiento personal. En las versiones 3.6.0 e inferiores, el endpoint de WebSocket (/ws) permite conexiones no autenticadas cuando se proporcionan par\u00e1metros de URL espec\u00edficos (?app=siyuan&amp;id=auth&amp;type=auth). Este bypass, destinado a la p\u00e1gina de inicio de sesi\u00f3n para mantener el kernel vivo, permite a cualquier cliente externo \u2014incluidos sitios web maliciosos a trav\u00e9s de WebSocket de origen cruzado\u2014 conectarse y recibir todos los eventos push del servidor en tiempo real. Estos eventos filtran metadatos de documentos sensibles, incluyendo t\u00edtulos de documentos, nombres de cuadernos, rutas de archivos y todas las operaciones CRUD realizadas por usuarios autenticados. Combinado con la ausencia de validaci\u00f3n del encabezado Origin, un sitio web malicioso puede conectarse silenciosamente a la instancia local de SiYuan de una v\u00edctima y monitorear su actividad de toma de notas. Este problema ha sido solucionado en la versi\u00f3n 3.6.1."}], "id": "CVE-2026-32815", "lastModified": "2026-06-17T10:36:23.873", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-32815", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-20T20:22:00.968704Z", "version": "2.0.3"}}]}, "published": "2026-03-19T22:16:42.167", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/siyuan-note/siyuan/commit/1e370e37359778c0932673e825182ff555b504a3"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xp2m-98x8-rpj6"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.6.1)"}}], "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"}], "analysis": {"en": {"generated_at": "2026-03-23T19:26:11.097827+00:00", "value": {"mitigation_remediation": ["Upgrade to SiYuan version 3.6.1 or later"], "summary": {"action": "Patch", "impact": "Information Disclosure via unauthenticated WebSocket hijacking"}, "threat_synthesis": {"affected_systems": "SiYuan Note, product Siyuan, affected versions 3.6.0 and earlier.", "description_and_impact": "The vulnerability permits any client to bypass authentication on the WebSocket endpoint by supplying specific URL parameters. This allows attackers to receive real\u2011time server push events that contain sensitive metadata such as document titles, notebook names, file paths, and CRUD actions performed by legitimate users, effectively exposing confidential note\u2011taking activity.", "risk_and_exploitability": "The CVSS score of 5.3 indicates a medium impact. The EPSS score of less than 1% suggests a low likelihood of widespread exploitation, and the issue is not listed in the CISA KEV catalog. Exploitation requires an attacker to host a malicious webpage that can open a Cross\u2011Origin WebSocket to the victim\u2019s local SiYuan instance, leveraging the absence of Origin header validation to silently harvest data."}}}}, "created": "2026-03-20T08:55:31.867238+00:00", "updated": "2026-03-25T11:54:40.831497+00:00", "vendors": ["siyuan", "siyuan$PRODUCT$siyuan"]}