CVE-2026-73046

SiYuan before v3.7.4 improperly restricts excessive authentication attempts in the CheckAuth middleware. The HTTP Basic Authentication branch, which guards nearly the entire /api/ surface, accepts the workspace access code Conf.AccessAuthCode as the Basic Auth password but never consults the...

CVE-2026-73046: Improper Restriction of Excessive Authentication Attempts

SiYuan before v3.7.4 improperly restricts excessive authentication attempts in the CheckAuth middleware. The HTTP Basic Authentication branch, which guards nearly the entire /api/ surface, accepts the workspace access code Conf.AccessAuthCode as the Basic Auth password but never consults the...

CVE-2026-73630

SiYuan before v3.7.4 contains an information disclosure vulnerability in the /api/filetree/authFilePublishAccess endpoint, which is registered with CheckAuth only and is reachable anonymously. The endpoint never sets a failure code, so its outcome is signalled entirely by the response message and...

CVE-2026-73630

SiYuan before v3.7.4 contains an information disclosure vulnerability in the /api/filetree/authFilePublishAccess endpoint, which is registered with CheckAuth only and reachable anonymously. The endpoint does not return a failure code; its outcome is signalled solely by the response message and th...

Duplicate Advisory: Localhost-trust admin bypass on auth-code-gated endpoints, with potential remote reachability via the fixed-port prox

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-3mp7-4rh5-jrv9. This link is maintained to preserve external references. Original Description SiYuan versions = v3.7.2 patched in v3.7.4 contain an authentication bypass vulnerability in the kernel's CheckAuth...

CVE-2026-72809

SiYuan versions = v3.7.2 patched in v3.7.4 contain an authentication bypass vulnerability in the kernel's CheckAuth function, which grants the administrator role RoleAdministrator to any request whose RemoteAddr is loopback 127.0.0.1 for a specific set of endpoints including /api/system/exit,...

CVE-2026-72802

SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the resolveAssetPath endpoint that returns absolute filesystem paths unmodified to CheckAuth-only requests. Attackers can harvest relative asset paths from published documents and submit them to resolveAssetPath to...

CVE-2026-72809 SiYuan before v3.7.4 Authentication Bypass via Localhost Trust

SiYuan versions = v3.7.2 patched in v3.7.4 contain an authentication bypass vulnerability in the kernel's CheckAuth function, which grants the administrator role RoleAdministrator to any request whose RemoteAddr is loopback 127.0.0.1 for a specific set of endpoints including /api/system/exit,...

CVE-2026-72809

Summary: SiYuan before v3.7.4 contains an authentication bypass in the kernel’s CheckAuth function that grants the administrator role to any request from the loopback address for a specific set of endpoints (e.g., /api/system/exit, getNetwork, getWorkspaceInfo, /assets/, /export/ ). The bypass oc...

CVE-2026-72802

SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the resolveAssetPath endpoint that returns absolute filesystem paths unmodified to CheckAuth-only requests. Attackers can harvest relative asset paths from published documents and submit them to resolveAssetPath to...

CVE-2026-72802

SiYuan before v3.7.4 is affected by an information disclosure in the resolveAssetPath endpoint. The endpoint returns absolute filesystem paths unmodified to CheckAuth-only requests, allowing an attacker to harvest relative asset paths from documents and retrieve the server’s absolute workspace pa...

EUVD-2026-57451

SiYuan v3.7.4-alpha.1 a pre-release; the endpoint does not exist in stable v3.7.3 or earlier contains an information disclosure vulnerability in the /api/av/getAttributeViewFieldViews endpoint. The route is registered with CheckAuth only and applies no publish-access filtering, so reader-role...

CVE-2026-72791 SiYuan before v3.7.4 Information Disclosure via getAttributeViewFieldViews

SiYuan v3.7.4-alpha.1 a pre-release; the endpoint does not exist in stable v3.7.3 or earlier contains an information disclosure vulnerability in the /api/av/getAttributeViewFieldViews endpoint. The route is registered with CheckAuth only and applies no publish-access filtering, so reader-role...

PT-2026-71251

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.7.4 Description An authentication bypass exists in the kernel's CheckAuth function. The system grants the RoleAdministrator role to any request where the RemoteAddr is the loopback address 127.0.0.1 for specific...

PT-2026-71233

SiYuan v3.7.4-alpha.1 a pre-release; the endpoint does not exist in stable v3.7.3 or earlier contains an information disclosure vulnerability in the /api/av/getAttributeViewFieldViews endpoint. The route is registered with CheckAuth only and applies no publish-access filtering, so reader-role...

CVE-2026-72809: Authentication Bypass by Spoofing

SiYuan versions = v3.7.2 patched in v3.7.4 contain an authentication bypass vulnerability in the kernel's CheckAuth function, which grants the administrator role RoleAdministrator to any request whose RemoteAddr is loopback 127.0.0.1 for a specific set of endpoints including /api/system/exit,...

EUVD-2026-30357

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan publish-mode Reader can mutate Conf and SQL index via 8 ungated APIs. POST /api/graph/getGraph, POST /api/graph/getLocalGraph, POST /api/sync/setSyncInterval, POST /api/storage/updateRecentDocViewTime, POST...

CVE-2026-45371 SiYuan: SiYuan publish-mode Reader can mutate Conf and SQL index via 8 ungated APIs

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan publish-mode Reader can mutate Conf and SQL index via 8 ungated APIs. POST /api/graph/getGraph, POST /api/graph/getLocalGraph, POST /api/sync/setSyncInterval, POST /api/storage/updateRecentDocViewTime, POST...

GHSA-GMMV-4CC5-WR9R SiYuan publish-mode Reader can mutate Conf and SQL index via 8 ungated APIs

Summary SiYuan publish-mode Reader can mutate Conf and SQL index via 8 ungated APIs POST /api/graph/getGraph, POST /api/graph/getLocalGraph, POST /api/sync/setSyncInterval, POST /api/storage/updateRecentDocViewTime, POST /api/storage/updateRecentDocCloseTime, POST...

GHSA-F9CQ-V43P-V523 SiYuan: Authorization Bypass Allows Low-Privilege Publish User to Modify Notebook Content via /api/block/appendHeadingChildren

Summary A privilege escalation vulnerability exists in the publish service of SiYuan Note that allows a low-privilege publish account RoleReader to modify notebook content via the /api/block/appendHeadingChildren API endpoint. The endpoint only requires model.CheckAuth, which accepts RoleReader...