CVE-2026-72801

HIGH 7.5

SiYuan before v3.7.4 Information Disclosure via Encryption Key Material

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-522
Vendor	siyuan-note
Product	siyuan
Published	Aug 12, 2026

Stay Ahead of the Next One

Get instant alerts for siyuan-note siyuan

Be the first to know when new high vulnerabilities affecting siyuan-note siyuan are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

siyuan-note / siyuan

0 < 3.7.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8x84-r2ff-h8pq vulncheck.com: https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-encryption-key-material

Credits

🔍 Shirshakhtml