CVE-2026-42234

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 73% 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
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

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

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, an authenticated user with permission to create or modify workflows containing a Python Code Node could escape the sandbox and achieve arbitrary code execution on the task runner container. This issue only affects instances where the Python Task Runner is enabled. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
29.9%
KEV
Not listed

Published

May 4, 2026

Last Modified

May 6, 2026

Advisory Details (1)

Auto-updated May 4, 2026
Patch available. Sources: github.
github Patch Available

Python Task Runner Sandbox Escape · Advisory · n8n-io/n8n · GitHub

https://github.com/n8n-io/n8n/security/advisories/GHSA-44v6-jhgm-p3m4

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
n8n—2.17.4—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 35× 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 105 total refreshes for this CVE.

  1. 2026-07-16 17:03 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 02:00 UTCEPSS rescore
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  1. 2026-06-23 21:33 UTCEPSS rescore
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  12. 2026-06-15 17:49 UTCEPSS rescore
  13. 2026-06-14 19:50 UTCEG score recompute
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  22. 2026-06-11 10:29 UTCEG score recompute
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  24. 2026-06-10 22:18 UTCEPSS rescore
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  27. 2026-06-10 10:56 UTCEG score recompute
  28. 2026-06-09 23:12 UTCEG score recompute
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  31. 2026-06-08 14:17 UTCEPSS rescore
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  35. 2026-06-07 15:25 UTCEPSS rescore
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  39. 2026-06-06 13:47 UTCEPSS rescore
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  50. 2026-06-04 08:33 UTCEG score recompute
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  60. 2026-05-31 22:30 UTCEPSS rescore
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  73. 2026-05-26 07:18 UTCEPSS rescore
  74. 2026-05-26 07:18 UTCEPSS rescore
  75. 2026-05-23 00:08 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-42234?
CVE-2026-42234 is a high vulnerability published on May 4, 2026. n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, an authenticated user with permission to create or modify workflows containing a Python Code Node could escape the sandbox and achieve arbitrary code execution on the task runner container. This…
When was CVE-2026-42234 disclosed?
CVE-2026-42234 was first published in the National Vulnerability Database on May 4, 2026, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42234 actively exploited?
CVE-2026-42234 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-42234?
CVE-2026-42234 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-42234?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42234, 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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