CVE-2026-72801

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability23. percentile0.3%

ProductGithub.com/siyuan-note/siyuan/kernel

PublishedAug 12, 2026

First seenAug 12, 2026

Weakness typeCWE-522CWE-522

How to fix

Update

github.com/siyuan-note/siyuan/kernel0.0.0-20260724102025-3bc014c7dc32 or later

Vendor advisories

github.com/siyuan-note/siyuan/security/advisories/GHSA-8x84-r2ff-h8pq

Affected products

Product	Affected versions	Fixed in
github.com/siyuan-note/siyuan/kernelGo	v < 0.0.0-20260724102025-3bc014c7dc32	0.0.0-20260724102025-3bc014c7dc32

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