CVE-2026-87807

siyuan versions before v3.8.2 contain an authenticated SQL injection vulnerability in the fullTextSearchBlock endpoint's method=1 query parameter. Attackers can inject UNION SELECT statements to read the entire blocks table, bypassing publish-access controls and exposing all document content and...

CVE-2026-87809

Siyuan before v3.8.2 fails to apply publish-access filtering to embedded blocks before rendering in the /api/export/preview and /api/lute/copyStdMarkdown endpoints. Attackers with reader access can retrieve the full rendered content of private, hidden, or publish-disabled blocks by accessing publ...

CVE-2026-87809

Siyuan before v3.8.2 contains an information disclosure flaw where publish-access filtering is not applied to embedded blocks before rendering in the /api/export/preview and /api/lute/copyStdMarkdown endpoints. An attacker with reader-level access can retrieve the full rendered content of private...

CVE-2026-87809 Siyuan before v3.8.2 Information Disclosure via Export Preview

Siyuan before v3.8.2 fails to apply publish-access filtering to embedded blocks before rendering in the /api/export/preview and /api/lute/copyStdMarkdown endpoints. Attackers with reader access can retrieve the full rendered content of private, hidden, or publish-disabled blocks by accessing publ...

EUVD-2026-74833

siyuan versions before v3.8.2 contain an authenticated SQL injection vulnerability in the fullTextSearchBlock endpoint's method=1 query parameter. Attackers can inject UNION SELECT statements to read the entire blocks table, bypassing publish-access controls and exposing all document content and...

GHSA-V684-Q882-JGMQ SiYuan: The publish-access gate treats encrypted notebooks as publicly accessible by default, allowing anonymous readers to retrieve fully decrypted document content while a notebook is unlocked

CVE: This vulnerability corresponds to CVE-2026-72789. Summary publishAccess.json is an opt-out list. The publish gate returns accessible for anything not explicitly listed in it. Encrypted notebooks are never written into that file, because only the administrator-gated setPublishAccess writes it...

GHSA-MP7R-57W4-5QM3 SiYuan: Tag labels from password-protected documents are returned to readers who have not entered the password

CVE: This vulnerability corresponds to CVE-2026-72792. Summary /api/tag/getTag filters its results for reader roles through FilterTagsByPublishIgnore, which checks only the visible publish tier. Documents that are published but password-protected pass that check, so a reader who has never entered...

GHSA-H6W7-XXCF-W2MQ SiYuan: Embedded (transclusion) block content is returned without publish-access filtering, leaking private and password-protected document content to anonymous readers

CVE: This vulnerability corresponds to CVE-2026-72795. Summary /api/block/getBlockDOMWithEmbed and /api/block/getBlockDOMsWithEmbed gate only the requested block against publish access. The blocks pulled in by that block's embed transclusion query are inlined into the returned DOM with no...

GHSA-FGMR-7W36-9QFQ SiYuan: Static-file routes bypass the publish-access controls enforced on the REST API, exposing templates, snippets and export artifacts to anonymous readers

CVE: This vulnerability corresponds to CVE-2026-72796. Summary Several static-file routes in the server mux kernel/server/serve.go are registered with CheckAuth only and serve directories directly, without the publish-access checks, sensitive-path blocklist, or refuseToAccess rules that the REST...

GHSA-MFRJ-V65R-979C SiYuan: Publish-access filter on renderAttributeView leaves related-database content unfiltered and fails open on non-block first columns

CVE: This vulnerability corresponds to CVE-2026-72798. Summary renderAttributeView correctly applies the reader publish-access filter, but the filter's row-accessibility decision is keyed solely to the row's first cell, and it never inspects the remaining cells' values. Relation and Rollup cells...

GHSA-5W7R-F4CG-RQQ7 SiYuan: Missing publish-access filter on the HPath/path-resolution endpoints discloses the private document tree to anonymous readers

CVE: This vulnerability corresponds to CVE-2026-72799. Summary Five filetree endpoints resolve arbitrary document IDs and paths with no publish-access check of any kind. All are CheckAuth-only, so they are reachable by the publish RoleReader token and by the anonymous account when...

EUVD-2026-57463

SiYuan: Missing publish-access filter on getBlockAttrs and batchGetBlockAttrs discloses block attributes name, alias, memo, custom fields of protected documents...

GHSA-QVQ9-HQ6P-V378 SiYuan: Missing publish-access filter on getBlockAttrs and batchGetBlockAttrs discloses block attributes (name, alias, memo, custom fields) of protected documents

CVE: This vulnerability corresponds to CVE-2026-72803. Summary POST /api/attr/getBlockAttrs and POST /api/attr/batchGetBlockAttrs return a block's full attribute set IAL with no publish-access check. Both are CheckAuth-only, so they are reachable by the publish RoleReader token and by the anonymo...

GHSA-67X2-MQ63-V9VM SiYuan: Missing publish-access check on getBlockBreadcrumb, getRefText, and getBlockTreeInfos discloses content and metadata of protected/forbidden documents

CVE: This vulnerability corresponds to CVE-2026-72805. Summary Three block endpoints return document content snippets and metadata without any publish-access check, while their sibling getBlockInfo which returns comparable data does enforce one. All three are CheckAuth-only, so they are reachable...

EUVD-2026-57409

SiYuan: Missing publish-access filter on getFileAnnotation discloses private PDF annotations of forbidden/protected documents publish mode...

EUVD-2026-52274

SiYuan: Cross-boundary content disclosure via getBacklinkDoc/getBackmentionDoc publish mode: reader-reachable rendered DOM of publish-forbidden docs; sibling list endpoints are filtered...

EUVD-2026-52275

SiYuan: Full-content disclosure of publish-disabled documents via getHeadingTransaction endpoints publish mode: reader-reachable rendered DOM with no publish-access check...

CVE-2026-72805

SiYuan versions before v3.7.4 fail to enforce publish-access checks on getBlockBreadcrumb, getRefText, and getBlockTreeInfos endpoints, allowing disclosure of protected document content and metadata. Anonymous readers or publish RoleReader accounts can retrieve document titles, ancestor block...

CVE-2026-72808

SiYuan versions up to and including v3.7.2 fixed in v3.7.4 contain an information disclosure vulnerability in the /api/asset/getFileAnnotation endpoint, which returns .sya PDF-annotation file content without a publish-access check. Because the endpoint is gated only by CheckAuth unlike the /asset...

CVE-2026-72808 SiYuan before v3.7.4 Information Disclosure via getFileAnnotation

SiYuan versions up to and including v3.7.2 fixed in v3.7.4 contain an information disclosure vulnerability in the /api/asset/getFileAnnotation endpoint, which returns .sya PDF-annotation file content without a publish-access check. Because the endpoint is gated only by CheckAuth unlike the /asset...