---
id: CVE-2026-72801
title: >-
  SiYuan versions before v3.7.4 disclose encrypted-notebook key-derivation
  material and wrapped data keys through unauthenticated endpoints in publish
  mode
summary: >-
  SiYuan versions before v3.7.4 disclose encrypted-notebook key-derivation
  material and wrapped data keys through unauthenticated endpoints in publish
  mode. Attackers can retrieve Argon2id salt, cost parameters, password
  verifiers, and wra…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-522
published: '2026-08-12'
updated: '2026-08-14'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72801'
references:
  - url: >-
      https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8x84-r2ff-h8pq
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-encryption-key-material
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8x84-r2ff-h8pq
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00409
epssPercentile: 0.32545
ingestedAt: '2026-08-15T21:29:27.176Z'
---

## Overview

SiYuan versions before v3.7.4 disclose encrypted-notebook key-derivation material and wrapped data keys through unauthenticated endpoints in publish mode. Attackers can retrieve Argon2id salt, cost parameters, password verifiers, and wrapped notebook keys to perform unlimited offline master-password cracking without rate limiting.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.