SiYuan before v3.7.4 Information Disclosure via Encryption Key Material

Advisories

SiYuan before v3.7.4 Information Disclosure via Encryption Key Material

severity: high
date: 8/12/2026
Affecting: siyuan >= 0, < 3.7.4
CVE: CVE-2026-72801
CWE: CWE-522 Insufficiently Protected Credentials
CVSS: 8.7
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
References: GitHub Security Advisory (GHSA-8x84-r2ff-h8pq)
Credit: Shirshakhtml
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.

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