CVE-2026-44670

CRITICALNVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.4 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 59% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.4Exploit: Elevated riskExposed: 0

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

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the kernel stores Attribute View (AV / database) names without any HTML escape, then a render template uses raw strings.ReplaceAll(tpl, "${avName}", nodeAvName) to embed the name in HTML before pushing to all clients via WebSocket. Three independent client paths (render.ts:120 → outerHTML, Title.ts:401 → innerHTML, transaction.ts:559 → innerHTML) consume the value without escaping. Because the main BrowserWindow runs nodeIntegration:true, contextIsolation:false, webSecurity:false (app/electron/main.js:407-411), HTML injection in the renderer becomes Node.js code execution. This vulnerability is fixed in 3.7.0.

CVSS v3
9.4
EG Score
9.4(medium)
EG Risk
58(Track*)
EG Risk 58/100SSVC: 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
Severity94% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

May 14, 2026

Last Modified

May 15, 2026

Advisory Details (1)

Auto-updated Aug 23, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Stored XSS via Attribute View name to Electron renderer RCE in SiYuan · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-2h64-c999-c9r6

Vendor Advisories for CVE-2026-44670(1)

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

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/siyuan-note/siyuan/kernel—0.0.0-20260512140701-d7b77d945e0d—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 45× 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.

Showing the most recent 100 of 132 total refreshes for this CVE.

  1. 2026-08-26 14:46 UTCEPSS rescore
  2. 2026-08-25 13:49 UTCEPSS rescore
  3. 2026-08-23 17:38 UTCEG score recompute
  4. 2026-08-23 00:19 UTCEPSS rescore
  5. 2026-08-22 01:48 UTCEG score recompute
  6. 2026-08-21 23:49 UTCEPSS rescore
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  8. 2026-08-20 19:35 UTCEG score recompute
  9. 2026-08-19 17:04 UTCEPSS rescore
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  11. 2026-08-17 14:41 UTCEG score recompute
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  15. 2026-08-16 03:56 UTCEG score recompute
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  21. 2026-08-12 14:58 UTCEG score recompute
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  23. 2026-08-11 15:24 UTCEG score recompute
  24. 2026-08-11 00:51 UTCEG score recompute
  25. 2026-08-11 00:00 UTCEPSS rescore
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  1. 2026-08-09 17:31 UTCEG score recompute
  2. 2026-08-09 13:46 UTCEPSS rescore
  3. 2026-08-09 01:49 UTCEG score recompute
  4. 2026-08-08 16:37 UTCEPSS rescore
  5. 2026-08-07 18:14 UTCEG score recompute
  6. 2026-08-06 16:59 UTCEG score recompute
  7. 2026-08-06 13:46 UTCEPSS rescore
  8. 2026-08-05 21:35 UTCEG score recompute
  9. 2026-08-05 19:17 UTCEPSS rescore
  10. 2026-08-04 15:10 UTCEPSS rescore
  11. 2026-08-04 10:38 UTCEPSS rescore
  12. 2026-08-03 18:59 UTCEG score recompute
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  17. 2026-08-01 04:16 UTCEPSS rescore
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  24. 2026-07-25 14:18 UTCEPSS rescore
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  26. 2026-07-23 14:18 UTCEPSS rescore
  27. 2026-07-23 03:15 UTCEG score recompute
  28. 2026-07-22 14:08 UTCEPSS rescore
  29. 2026-07-21 15:24 UTCEPSS rescore
  30. 2026-07-20 17:08 UTCEPSS rescore
  31. 2026-07-19 14:31 UTCEPSS rescore
  32. 2026-07-19 02:29 UTCEPSS rescore
  33. 2026-07-18 10:04 UTCEPSS rescore
  34. 2026-07-18 01:29 UTCOSV refresh
  35. 2026-07-16 17:03 UTCEPSS rescore
  36. 2026-07-15 16:57 UTCEPSS rescore
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  40. 2026-07-12 05:46 UTCEPSS rescore
  41. 2026-07-11 08:27 UTCEPSS rescore
  42. 2026-07-09 19:10 UTCEPSS rescore
  43. 2026-07-08 15:16 UTCEPSS rescore
  44. 2026-07-07 13:46 UTCEPSS rescore
  45. 2026-07-06 16:27 UTCEPSS rescore
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  48. 2026-07-04 06:31 UTCEPSS rescore
  49. 2026-07-01 15:07 UTCEPSS rescore
  50. 2026-06-30 23:22 UTCEPSS rescore
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  54. 2026-06-28 04:56 UTCEPSS rescore
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  56. 2026-06-25 13:49 UTCEPSS rescore
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  68. 2026-06-17 17:53 UTCEPSS rescore
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  70. 2026-06-15 17:49 UTCEPSS rescore
  71. 2026-06-13 23:00 UTCEPSS rescore
  72. 2026-06-12 23:12 UTCEPSS rescore
  73. 2026-06-12 23:12 UTCEPSS rescore
  74. 2026-06-11 14:00 UTCEPSS rescore
  75. 2026-06-10 22:18 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-44670?
CVE-2026-44670 is a critical vulnerability published on May 14, 2026. SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the kernel stores Attribute View (AV / database) names without any HTML escape, then a render template uses raw strings.ReplaceAll(tpl, "${avName}", nodeAvName) to embed the name in HTML before pushing to all clients via…
When was CVE-2026-44670 disclosed?
CVE-2026-44670 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on May 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44670 actively exploited?
CVE-2026-44670 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 58.8% of all scored CVEs.
What is the CVSS score of CVE-2026-44670?
CVE-2026-44670 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-44670?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44670, 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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