SEPTEMBER 19, 2026
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Case File

CVE-2026-73045

HIGH · CVSS 7.5 EPSS 0.30% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-15 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

SiYuan versions prior to 3.7.4 are vulnerable to a brute-force attack on the publish passwords for notebooks due to inadequate restrictions on authentication attempts at the authFilePublishAccess endpoint. This flaw allows unauthenticated attackers to submit unlimited password guesses, potentially compromising sensitive data in password-protected notebooks. Organizations using affected versions should prioritize patching to mitigate the risk of unauthorized access.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-73045
Severity
HIGH
CVSS
7.5
EPSS
0.30%

Original NVD 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.