CVE-2026-72801
SiYuan before v3.7.4 Information Disclosure via Encryption Key Material
- State
- Published
- Severity
- 8.7 High
- Published
- Aug 12, 2026
- Updated
- Aug 14, 2026
- Reserved
- Aug 10, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-522 Insufficiently Protected Credentials
Affected Products
| Product | Versions |
|---|---|
siyuansiyuan-note |
|
References
- GitHub Security Advisory (GHSA-8x84-r2ff-h8pq)vendor-advisory
- VulnCheck Advisory: SiYuan before v3.7.4 Information Disclosure via Encryption Key Materialthird-party-advisory
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