PT-2026-71243 · Siyuan · Siyuan

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CVE-2026-72801

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Published

2026-08-12

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Updated

2026-09-10

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.7.4
Description In publish mode, unauthenticated endpoints disclose encrypted-notebook key-derivation material and wrapped data keys. This allows attackers to retrieve the Argon2id salt, cost parameters, password verifiers, and wrapped notebook keys. Consequently, this enables unlimited offline master-password cracking without rate limiting. Argon2id is a password hashing function designed to resist GPU-based cracking attacks.
Recommendations Update to version 3.7.4 or later.

Exploit

Fix

Insufficiently Protected Credentials

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Weakness Enumeration

Related Identifiers

CVE-2026-72801
GHSA-8X84-R2FF-H8PQ
GHSA-HR3F-QFRH-H7W5
GO-2026-6392

Affected Products

Siyuan