# CVE-2026-74799

## Summary

- **CVE ID:** CVE-2026-74799
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:L/SC:H/SI:N/SA:L)
- **CWE:** CWE-215
- **Published:** Aug 17, 2026
- **Last Modified:** Aug 17, 2026

## Description

SiYuan before 3.7.4 registers Go net/http/pprof debug endpoints including heap and goroutine dumps without authentication when --mode flag is not set to exactly prod. Attackers can access /debug/pprof/heap and related endpoints to extract in-memory secrets including AccessAuthCode and AI provider API keys.

## Affected Products

- siyuan-note — siyuan (0)
- siyuan-note — siyuan (3.7.4)

## References

- [CNA](https://github.com/siyuan-note/siyuan/security/advisories/GHSA-9cqq-p2hw-mj3f)
- [CNA](https://www.vulncheck.com/advisories/siyuan-before-unauthenticated-debug-endpoint-information-disclosure)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.39%
- **EPSS Percentile:** 31.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._