CVE-2026-47686

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (45th percentile of EPSS-scored CVEs). 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, secondary
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, handleException() in lib/setup-sandbox.js sanitizes SuppressedError.error, SuppressedError.suppressed, and AggregateError.errors but does not sanitize Error.cause, allowing sandbox code to obtain a powerful host object such as process from an embedder-exposed host function that throws an error with that object as its cause and then execute arbitrary host commands. This issue is fixed in version 3.11.6.

CVSS v3
9.9
EG Score
9.9CRITICALmedium confidence
EG Risk
45
EG Risk 45/100CISA SSVC

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
Severity99% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
45th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 17, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Sep 30, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
github Patch Available🟡 PoC Available

Missing Error.cause Sanitization Enables VM2 Sandbox Escape to RCE · Advisory · patriksimek/vm2 · GitHub

https://github.com/patriksimek/vm2/security/advisories/GHSA-m283-3h24-438v
github_release Patch Available

v3.11.6

Patch available: patriksimek/vm2 3.11.6

https://github.com/patriksimek/vm2/releases/tag/3.11.6
github_commit Patch Available

commit 7e3faaf550f4 (patriksimek/vm2)

Patch available: patriksimek/vm2 3.11.6 (contains commit 7e3faaf550f4)

https://github.com/patriksimek/vm2/commit/7e3faaf550f4ab975bf4cdde183fcec49b056d8e

Vendor Advisories for CVE-2026-47686(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)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
vm2—
  • every version up to 3.11.6: fixed in 3.11.6
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 49× 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. 2026-10-05 02:22 UTCEG score recompute
  2. 2026-10-04 23:22 UTCEPSS rescore
  3. 2026-10-03 17:48 UTCEG score recompute
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-02 21:44 UTCEG score recompute
  6. 2026-10-02 01:34 UTCEG score recompute
  7. 2026-10-01 19:50 UTCEPSS rescore
  8. 2026-09-30 20:52 UTCEG score recompute
  9. 2026-09-30 15:03 UTCEPSS rescore
  10. 2026-09-30 10:00 UTCEG score recompute
  11. 2026-09-28 21:59 UTCEG score recompute
  12. 2026-09-28 15:20 UTCEG score recompute
  13. 2026-09-28 13:51 UTCEPSS rescore
  14. 2026-09-27 16:42 UTCEG score recompute
  15. 2026-09-27 13:48 UTCEPSS rescore
  16. 2026-09-27 08:06 UTCEG score recompute
  17. 2026-09-26 15:59 UTCEPSS rescore
  18. 2026-09-26 00:27 UTCEPSS rescore
  19. 2026-09-25 02:02 UTCEG score recompute
  20. 2026-09-23 20:27 UTCEG score recompute
  21. 2026-09-23 17:53 UTCEPSS rescore
  22. 2026-09-22 20:41 UTCEG score recompute
  23. 2026-09-21 22:57 UTCEG score recompute
  24. 2026-09-20 23:46 UTCEG score recompute
  25. 2026-09-20 20:16 UTCEPSS rescore
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  1. 2026-09-19 17:06 UTCEG score recompute
  2. 2026-09-18 19:32 UTCEG score recompute
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-17 21:54 UTCEG score recompute
  5. 2026-09-16 15:15 UTCEG score recompute
  6. 2026-09-16 14:08 UTCEPSS rescore
  7. 2026-09-16 06:07 UTCEG score recompute
  8. 2026-09-16 05:15 UTCEPSS rescore
  9. 2026-09-15 05:54 UTCEG score recompute
  10. 2026-09-13 19:00 UTCEG score recompute
  11. 2026-09-13 16:47 UTCEPSS rescore
  12. 2026-09-12 17:00 UTCEG score recompute
  13. 2026-09-11 17:59 UTCEG score recompute
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 13:40 UTCEG score recompute
  16. 2026-09-10 10:29 UTCEG score recompute
  17. 2026-09-10 09:35 UTCEPSS rescore
  18. 2026-09-09 03:39 UTCEG score recompute
  19. 2026-09-08 22:00 UTCEPSS rescore
  20. 2026-09-07 16:11 UTCEG score recompute
  21. 2026-09-07 16:01 UTCEPSS rescore
  22. 2026-09-06 15:15 UTCEG score recompute
  23. 2026-09-06 13:47 UTCEPSS rescore
  24. 2026-09-05 17:29 UTCEG score recompute
  25. 2026-09-04 14:26 UTCEG score recompute
  26. 2026-09-04 05:48 UTCEG score recompute
  27. 2026-09-04 05:06 UTCEPSS rescore
  28. 2026-09-02 17:08 UTCEG score recompute
  29. 2026-09-02 14:12 UTCEPSS rescore
  30. 2026-09-01 14:39 UTCEG score recompute
  31. 2026-09-01 13:54 UTCEPSS rescore
  32. 2026-09-01 06:00 UTCEG score recompute
  33. 2026-08-30 21:21 UTCEG score recompute
  34. 2026-08-30 19:17 UTCEPSS rescore
  35. 2026-08-30 04:06 UTCEG score recompute
  36. 2026-08-30 01:22 UTCEPSS rescore
  37. 2026-08-29 05:31 UTCEG score recompute
  38. 2026-08-28 21:41 UTCEPSS rescore
  39. 2026-08-27 19:26 UTCEG score recompute
  40. 2026-08-27 14:25 UTCEPSS rescore
  41. 2026-08-26 15:12 UTCEG score recompute
  42. 2026-08-26 14:46 UTCEPSS rescore
  43. 2026-08-25 17:06 UTCEG score recompute
  44. 2026-08-25 13:49 UTCEPSS rescore
  45. 2026-08-24 15:08 UTCEG score recompute
  46. 2026-08-24 10:49 UTCEG score recompute
  47. 2026-08-23 04:19 UTCEG score recompute
  48. 2026-08-23 00:19 UTCEPSS rescore
  49. 2026-08-22 02:26 UTCEG score recompute
  50. 2026-08-21 23:49 UTCEPSS rescore
  51. 2026-08-21 00:30 UTCEG score recompute
  52. 2026-08-20 22:55 UTCEPSS rescore
  53. 2026-08-19 18:17 UTCEG score recompute
  54. 2026-08-19 17:04 UTCEPSS rescore
  55. 2026-08-19 04:21 UTCEG score recompute
  56. 2026-08-19 04:12 UTCEG score recompute
  57. 2026-08-18 18:25 UTCEG score recompute
  58. 2026-08-18 18:00 UTCEG score recompute
  59. 2026-08-18 14:54 UTCEG score recompute
  60. 2026-08-18 13:48 UTCEPSS rescore
  61. 2026-08-17 21:32 UTCEG score recompute
  62. 2026-08-17 17:54 UTCEG score recompute

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-47686?
CVE-2026-47686 is a critical vulnerability published on August 17, 2026. vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, handleException() in lib/setup-sandbox.js sanitizes SuppressedError.error, SuppressedError.suppressed, and AggregateError.errors but does not sanitize Error.cause, allowing sandbox code to obtain a powerful host object such as process…
When was CVE-2026-47686 disclosed?
CVE-2026-47686 was first published on August 17, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47686 actively exploited?
CVE-2026-47686 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-47686?
CVE-2026-47686 has a CVSS base score of 9.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-47686?
A fix for CVE-2026-47686 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-47686 are linked in the Vendor Advisories panel on this page.

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