CVE-2026-65590

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 75% 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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

n8n before 2.29.8 and 2.30.x before 2.30.1 does not enforce shell sandbox restrictions on Linux and Windows in the @n8n/computer-use package (sandboxing was applied only on macOS). Shell commands executed by the tool run without any filesystem or network restrictions, allowing unrestricted access to the host filesystem and network from within the computer-use agent process. This issue only affects deployments where the @n8n/computer-use package is explicitly installed and running; standard n8n installations are not affected.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

July 22, 2026

Last Modified

July 27, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
Patch available. Sources: github.
generic

n8n before 2.30.1 Shell Sandbox Bypass on Linux Windows | Advisories | VulnCheck

https://www.vulncheck.com/advisories/n8n-before-shell-sandbox-bypass-on-linux-windows
github Patch Available

computer-use Shell Sandbox Not Enforced on Linux and Windows · Advisory · n8n-io/n8n · GitHub

https://github.com/n8n-io/n8n/security/advisories/GHSA-fpg6-x68q-5793

Vendor Advisories for CVE-2026-65590(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 rangeFixed inDependents
n8n2.29.8

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 46× 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 180 total refreshes for this CVE.

  1. 2026-09-18 22:41 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 03:11 UTCEG score recompute
  4. 2026-09-17 02:13 UTCEG score recompute
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  1. 2026-09-01 23:42 UTCEG score recompute
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  23. 2026-08-19 17:04 UTCEPSS rescore
  24. 2026-08-18 19:12 UTCEG score recompute
  25. 2026-08-18 13:48 UTCEPSS rescore
  26. 2026-08-17 14:07 UTCEG score recompute
  27. 2026-08-17 13:47 UTCEPSS rescore
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  30. 2026-08-16 03:57 UTCEG score recompute
  31. 2026-08-15 01:34 UTCEG score recompute
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  33. 2026-08-13 23:11 UTCEG score recompute
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  40. 2026-08-09 17:15 UTCEG score recompute
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  50. 2026-08-04 16:30 UTCEG score recompute
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  65. 2026-07-27 19:17 UTCEG score recompute 4.30
  66. 2026-07-27 19:15 UTCNVD updateCVSS v3 → 9.8 · severity → CRITICAL
  67. 2026-07-27 14:14 UTCEPSS rescore
  68. 2026-07-27 09:49 UTCEG score recompute
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Frequently asked(5)

What is CVE-2026-65590?
CVE-2026-65590 is a critical vulnerability published on July 22, 2026. n8n before 2.29.8 and 2.30.x before 2.30.1 does not enforce shell sandbox restrictions on Linux and Windows in the @n8n/computer-use package (sandboxing was applied only on macOS). Shell commands executed by the tool run without any filesystem or network restrictions, allowing unrestricted access…
When was CVE-2026-65590 disclosed?
CVE-2026-65590 was first published in the National Vulnerability Database on July 22, 2026, with the most recent update on July 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65590 actively exploited?
CVE-2026-65590 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 74.6% of all scored CVEs.
What is the CVSS score of CVE-2026-65590?
CVE-2026-65590 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-65590?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65590, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-65590

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