CVE-2026-74799

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreHIGH confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-17. a secondary CVSS source baseline 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.3
EG Score
9.3(high)
EG Risk
47(Track)
EG Risk 47/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity93% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

August 17, 2026

Last Modified

August 17, 2026

Advisory Details (2)

Auto-updated Aug 17, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

SiYuan before 3.7.4 Unauthenticated Debug Endpoint Information Disclosure | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-unauthenticated-debug-endpoint-information-disclosure
github Patch Available🟡 PoC Available

Go net/http/pprof debug endpoints, including heap dumps, are registered fully unauthenticated whenever --mode is not exactly "prod", exposing in-memory secrets (AI provider API keys, AccessAuthCode) with no corresponding warning on the flag ``` · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-9cqq-p2hw-mj3f

Vendor Advisories for CVE-2026-74799(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 32× in last 7d / 32× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-21 07:32 UTCGHSA enrichment
  2. 2026-08-21 03:09 UTCEG score recompute
  3. 2026-08-21 03:09 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 22:47 UTCGHSA enrichment
  6. 2026-08-20 18:24 UTCGHSA enrichment
  7. 2026-08-20 14:02 UTCGHSA enrichment
  8. 2026-08-20 09:35 UTCGHSA enrichment
  9. 2026-08-20 05:13 UTCGHSA enrichment
  10. 2026-08-20 00:47 UTCGHSA enrichment
  11. 2026-08-19 20:24 UTCEG score recompute
  12. 2026-08-19 20:24 UTCGHSA enrichment
  13. 2026-08-19 17:04 UTCEPSS rescore
  14. 2026-08-19 15:56 UTCGHSA enrichment
  15. 2026-08-19 11:24 UTCGHSA enrichment
  16. 2026-08-19 07:01 UTCGHSA enrichment
  17. 2026-08-19 02:38 UTCGHSA enrichment
  18. 2026-08-18 22:14 UTCGHSA enrichment
  19. 2026-08-18 17:49 UTCEG score recompute
  20. 2026-08-18 17:49 UTCGHSA enrichment
  21. 2026-08-18 13:49 UTCEPSS rescore
  22. 2026-08-18 13:49 UTCEPSS rescore
  23. 2026-08-18 13:25 UTCGHSA enrichment
  24. 2026-08-18 08:59 UTCGHSA enrichment
  25. 2026-08-18 04:35 UTCGHSA enrichment
Show 7 more
  1. 2026-08-18 00:11 UTCGHSA enrichment
  2. 2026-08-17 19:45 UTCGHSA enrichment
  3. 2026-08-17 15:21 UTCEG score recompute
  4. 2026-08-17 15:21 UTCGHSA enrichment
  5. 2026-08-17 11:42 UTCEG score recompute
  6. 2026-08-17 11:13 UTCEG score recompute
  7. 2026-08-17 11:12 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74799?
CVE-2026-74799 is a critical vulnerability published on August 17, 2026. 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…
When was CVE-2026-74799 disclosed?
CVE-2026-74799 was first published in the National Vulnerability Database on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74799 actively exploited?
CVE-2026-74799 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 68.1% of all scored CVEs.
What is the CVSS score of CVE-2026-74799?
CVE-2026-74799 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-74799?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74799, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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