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.
Published: 2026-08-12
Score: 8.7 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 12 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
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.
Title SiYuan before v3.7.4 Information Disclosure via Encryption Key Material
Weaknesses CWE-522
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.7, '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'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-12T19:07:47.033Z

Reserved: 2026-08-10T15:11:03.190Z

Link: CVE-2026-72801

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-12T20:17:51.973

Modified: 2026-08-12T20:17:51.973

Link: CVE-2026-72801

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses