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CVE-2026-68584GHSA-7J72-F6WG-CXW6GO-2026-6382

SiYuan before v3.7.3 Authentication Bypass via Content Endpoints

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 3.7.3, 0.0.0-20260721020826-2d069dce84a2
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: yes
  • Technical impact: partial

Summary

SiYuan versions before v3.7.3 contain an authentication bypass vulnerability in publish mode where content-returning endpoints getHeadingChildrenDOM, getHeading*Transaction, and getBacklinkDoc perform no password check despite protecting the primary getDoc endpoint. Anonymous attackers can retrieve full content of password-protected documents by obtaining internal block IDs from reader-accessible endpoints and calling unprotected content endpoints to bypass the password gate.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • siyuan-note siyuan

    fixed in 3.7.3

  • github.com/siyuan-note/siyuan/kernelGo

    fixed in 0.0.0-20260721020826-2d069dce84a2

References 2

GitHub · siyuan-note/siyuan

vulncheck.com