CVE-2026-74867

SiYuan versions before 3.7.4 are affected by a cross-site request forgery (CSRF) vulnerability in the session-cookie authentication branch of CheckAuth() . The root cause is the absence of Origin/Referer header validation combined with the lack of an explicit SameSite attribute on session cookies...

CVE-2026-74867: Cross-Site Request Forgery (CSRF)

SiYuan versions before 3.7.4 contain a cross-site request forgery vulnerability in the session-cookie authentication branch of CheckAuth that lacks Origin/Referer validation and sets no explicit SameSite attribute on session cookies. Attackers can craft malicious web pages that perform unauthoriz...

PT-2026-76603

SiYuan versions before 3.7.4 contain a cross-site request forgery vulnerability in the session-cookie authentication branch of CheckAuth that lacks Origin/Referer validation and sets no explicit SameSite attribute on session cookies. Attackers can craft malicious web pages that perform unauthoriz...

CVE-2026-73056

SiYuan kernel versions before 3.7.4 contain an improper restriction of excessive authentication attempts vulnerability in the CheckAuth middleware. The middleware accepts the API token Conf.Api.Token via an Authorization header Token/Bearer or a ?token= query parameter, and neither path is...

EUVD-2026-59942

SiYuan kernel versions before 3.7.4 contain an improper restriction of excessive authentication attempts vulnerability in the CheckAuth middleware. The middleware accepts the API token Conf.Api.Token via an Authorization header Token/Bearer or a ?token= query parameter, and neither path is...

CVE-2026-73056: Improper Restriction of Excessive Authentication Attempts

SiYuan kernel versions before 3.7.4 contain an improper restriction of excessive authentication attempts vulnerability in the CheckAuth middleware. The middleware accepts the API token Conf.Api.Token via an Authorization header Token/Bearer or a ?token= query parameter, and neither path is...

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

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 reachable anonymously. The endpoint does not return a failure code; its outcome is signalled solely by the response message and th...

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...

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...