VulnSocial

CVE-2026-68584Patch

LOWCVSS 9.2 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Patch affected systems immediately
  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

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.

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2.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-288

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Public PoC is present in monitored signal
  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-08-20); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-08-20: 1Mentions · 2026-09-04: 1PoC Mentioned / Linked · 2026-08-20: 1Patch / Workaround · 2026-08-20: 1Technical Details · 2026-08-20: 108-2009-04
Signal classification2 categories
Patch
150.0%
General
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-08-201
Patch1
2026-09-041
General1
Full discourse2 posts
  • SECNORA®@secnorainfosec
    Patch

    🔒 CVE-2026-68584: SiYuan Authentication Bypass Exposed Password-Protected Documents Anonymous users could read protected SiYuan docs, no password needed. CVSS 8.6 (High), affects v3.7.2 and earlier, fixed in v3.7.3. Read the full technical breakdown: https://secnora.com/blog/cve-2026-68584-siyuan-authentication-bypass/

    Post summary

    CVE-2026-68584 enables unauthenticated users to read password-protected SiYuan documents, and the flaw was fixed in version 3.7.3.

    0002029
    77 followersView on X
  • DailyCVE@dailycve
    General

    🔴 SiYuan, Access Control Bypass, #CVE-2026-68584 (Critical) -DC-Sep2026-2166 https://dailycve.com/siyuan-access-control-bypass-cve-2026-68584-critical-dc-sep2026-2166/

    Post summary

    The post announces a new CVE with a brief title and link, but offers no substantive details on exploitation, patches, or technical aspects.

    0000040
    233 followersView on X

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