CVE-2026-73045
SiYuan before 3.7.4 Brute-Force via authFilePublishAccess
- State
- Published
- Severity
- 8.7 High
- Published
- Aug 15, 2026
- Updated
- Aug 18, 2026
- Reserved
- Aug 10, 2026
Description
SiYuan before 3.7.4 contains an improper restriction of excessive authentication attempts vulnerability in the authFilePublishAccess endpoint that allows unauthenticated attackers to brute-force per-notebook publish passwords. Attackers can submit unbounded password guesses without rate limiting or CAPTCHA to gain access to password-protected published notebooks.
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-307 Improper Restriction of Excessive Authentication Attempts
Affected Products
| Product | Versions |
|---|---|
siyuansiyuan-note |
|
References
- GitHub Security Advisory (GHSA-v362-968x-gp2v)vendor-advisory
- VulnCheck Advisory: SiYuan before 3.7.4 Brute-Force via authFilePublishAccessthird-party-advisory
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