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Siyuan

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high advisory

SiYuan Publish-Mode Reader Configuration and Index Mutation Vulnerability

SiYuan publish-mode Reader can mutate Conf and SQL index via 8 ungated APIs, leading to configuration changes, denial of service, data corruption, and information disclosure by manipulating cloud sync intervals, graph configurations, SQL block content, and recent-documents lists.

siyuan misconfiguration unauthorized_access data_manipulation
2r 1t
high advisory

SiYuan Path Traversal via Double URL Encoding in `/export/` Endpoint

SiYuan is vulnerable to path traversal via double URL encoding in the `/export/` endpoint, bypassing an incomplete fix for CVE-2026-30869; an authenticated attacker can exploit this vulnerability to traverse directories and read arbitrary workspace files, including the SQLite database (`siyuan.db`), kernel log, and user documents due to a redundant `url.PathUnescape()` call in `serveExport()`.

siyuan path-traversal web-application
2r 1t 1c 1i
critical threat

Critical RCE Vulnerability in Langflow AI Pipelines (CVE-2026-33017)

A critical remote code execution vulnerability, CVE-2026-33017, exists in Langflow AI pipelines prior to version 1.9.0 that allows an unauthenticated remote attacker to execute code with full server process privileges, impacting availability, integrity, and confidentiality.

Siyuan +6 langflow rce cve-2026-33017 ai-pipeline
2r 2t 1i updated
critical advisory

SiYuan Path Traversal Vulnerability (CVE-2026-40318)

SiYuan versions 3.6.3 and prior are vulnerable to path traversal (CVE-2026-40318), allowing attackers to delete arbitrary .json files on the server via the /api/av/removeUnusedAttributeView endpoint.

SiYuan path-traversal vulnerability
3r 1t 1c
high advisory

SiYuan Unauthorized Attribute View Deletion Vulnerability (CVE-2026-40259)

SiYuan versions 3.6.3 and below are vulnerable to unauthorized attribute view deletion via the /api/av/removeUnusedAttributeView endpoint, allowing authenticated users with publish-service RoleReader tokens to delete arbitrary attribute view definitions, leading to database view breakage and workspace rendering issues.

SiYuan attribute-deletion vulnerability webserver
2r 1c