GO-2026-6654 SiYuan: 17 block metadata/content endpoints in kernel/api/block.go have zero publish-access filtering, reachable by anonymous publish-mode readers in github.com/siyuan-note/siyuan/kernel

SiYuan: 17 block metadata/content endpoints in kernel/api/block.go have zero publish-access filtering, reachable by anonymous publish-mode readers in github.com/siyuan-note/siyuan/kernel...

EUVD-2026-60585

SiYuan: 17 block metadata/content endpoints in kernel/api/block.go have zero publish-access filtering, reachable by anonymous publish-mode readers...

SiYuan: 17 block metadata/content endpoints in kernel/api/block.go have zero publish-access filtering, reachable by anonymous publish-mode readers

Same CWE-862 family, found via an automated bulk sweep of every /api/block/ handler in kernel/api/block.go for the presence of any access-check reference IsReadOnlyRoleContext, checkBlockPublishAccess, GetPublishAccess anywhere in the function body. 17 of 28 candidate endpoints have none...

GHSA-4VPG-GWQQ-W44C SiYuan: 17 block metadata/content endpoints in kernel/api/block.go have zero publish-access filtering, reachable by anonymous publish-mode readers

Same CWE-862 family, found via an automated bulk sweep of every /api/block/ handler in kernel/api/block.go for the presence of any access-check reference IsReadOnlyRoleContext, checkBlockPublishAccess, GetPublishAccess anywhere in the function body. 17 of 28 candidate endpoints have none...

PT-2026-105480

Same CWE-862 family, found via an automated bulk sweep of every /api/block/ handler in kernel/api/block.go for the presence of any access-check reference IsReadOnlyRoleContext, checkBlockPublishAccess, GetPublishAccess anywhere in the function body. 17 of 28 candidate endpoints have none...

EUVD-2026-87740

SiYuan is a self-hosted personal knowledge management system. In versions up to and including 3.8.3, the kernel's authentication guards CheckAuth in kernel/model/session.go and IsSessionOriginAllowed in kernel/util/net.go fail open when the HTTP Origin header is absent, on the incorrect assumptio...

PT-2026-99317

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.8.4 Description Authentication guards CheckAuth in kernel/model/session.go and IsSessionOriginAllowed in kernel/util/net.go fail open when the HTTP Origin header is absent. This occurs because the system incorrectly...

Duplicate Advisory: 17 block metadata/content endpoints in kernel/api/block.go have zero publish-access filtering, reachable by anonymous publish-mode readers

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-4vpg-gwqq-w44c. This link is maintained to preserve external references. Original Description SiYuan before v3.7.4 is missing authorization checks in 17 block metadata/content endpoints in kernel/api/block.go...

GHSA-69JP-F2P8-9VRG Duplicate Advisory: 17 block metadata/content endpoints in kernel/api/block.go have zero publish-access filtering, reachable by anonymous publish-mode readers

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-4vpg-gwqq-w44c. This link is maintained to preserve external references. Original Description SiYuan before v3.7.4 is missing authorization checks in 17 block metadata/content endpoints in kernel/api/block.go...

CVE-2026-74904

SiYuan before v3.7.4 is missing authorization checks in 17 block metadata/content endpoints in kernel/api/block.go including getRefText, checkBlockExist, and getBlockBreadcrumb. These handlers are gated only by basic authentication model.CheckAuth and lack publish-access filtering, allowing...

CVE-2026-74904 SiYuan before v3.7.4 Missing Authorization via block API

SiYuan before v3.7.4 is missing authorization checks in 17 block metadata/content endpoints in kernel/api/block.go including getRefText, checkBlockExist, and getBlockBreadcrumb. These handlers are gated only by basic authentication model.CheckAuth and lack publish-access filtering, allowing...

CVE-2026-74904

In SiYuan before v3.7.4, 17 block endpoints in kernel/api/block.go (getRefText, checkBlockExist, getBlockBreadcrumb) are gated only by model.CheckAuth without publish-access filtering, letting anonymous publish-mode readers disclose private block content, metadata, and existence info. Patch to v3...

PT-2026-76919

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.7.4 Description SiYuan contains a missing authorization issue affecting 17 endpoints within kernel/api/block.go. These handlers are only protected by basic authentication and lack necessary publish-access filtering...

PT-2026-105487

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-4vpg-gwqq-w44c. This link is maintained to preserve external references. Original Description SiYuan before v3.7.4 is missing authorization checks in 17 block metadata/content endpoints in kernel/api/block.go...

CVE-2026-74904: Missing Authorization

SiYuan before v3.7.4 is missing authorization checks in 17 block metadata/content endpoints in kernel/api/block.go including getRefText, checkBlockExist, and getBlockBreadcrumb. These handlers are gated only by basic authentication model.CheckAuth and lack publish-access filtering, allowing...

CVE-2026-74800

SiYuan before v3.7.4 fails to set Content-Disposition and X-Content-Type-Options headers when serving arbitrary file assets, allowing stored cross-site scripting attacks. Authenticated attackers can upload HTML files as assets and execute scripts with full kernel API access when the workspace own...

CVE-2026-74800

SiYuan before v3.7.4 serves uploaded HTML files without Content-Disposition or X-Content-Type-Options headers, enabling authenticated attackers to inject stored XSS that runs with full kernel API access when the workspace owner clicks the asset link; upgrade to v3.7.4 or later. No active exploita...

EUVD-2026-60083

SiYuan before v3.7.4 fails to set Content-Disposition and X-Content-Type-Options headers when serving arbitrary file assets, allowing stored cross-site scripting attacks. Authenticated attackers can upload HTML files as assets and execute scripts with full kernel API access when the workspace own...

CVE-2026-74800 SiYuan before v3.7.4 Stored XSS via assets endpoint

SiYuan before v3.7.4 fails to set Content-Disposition and X-Content-Type-Options headers when serving arbitrary file assets, allowing stored cross-site scripting attacks. Authenticated attackers can upload HTML files as assets and execute scripts with full kernel API access when the workspace own...

CVE-2026-74800

SiYuan before v3.7.4 fails to set Content-Disposition and X-Content-Type-Options headers when serving arbitrary file assets, allowing stored cross-site scripting attacks. Authenticated attackers can upload HTML files as assets and execute scripts with full kernel API access when the workspace own...