vciy

CVE-2026-65590

INDEX BUILT · 2026-09-20

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n8n before 2.30.1 Shell Sandbox Bypass on Linux Windows

CVE-2026-655904 of 4 sources documented this
29

rank 29 = 0 + 25 + 0 + 4 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00322  ·  without this subject the record ranks 29

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from NVD  ·  without this subject the record ranks 4

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 29

How much of the world it touches

NVD CPE configurations

2 products in the CPE ranges  ·  without this subject the record ranks 25

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 29

Unaudited dollar value2 of 3 inputs carry a receipt
Exposureunder $1over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

under $1 = $4.99M incident cost x 0 exposure x 0.00322 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.00322EPSSNOT IN KEVas of 2026-09-20
Severity5.5 MEDIUMreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementfallenreceipt
FALLING10Fallen from 0.00441 to 0.00322 across 3 observations. arc-rules@v1

Foresight · where to check next

Palo AltoBerriAI litellmBeyondTrustPHPCVE-2024-51378CVE-2023-4320865590

This record is one instance of CWE-78, improper neutralization of special elements used in an os command ('os command injection'). The index holds 6775 prior instances of this class, 121 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

Sources disagree here.

Severity score
VulnCheck5.5 MEDIUMreceipt
NVD9.8 CRITICALreceipt
Scoring standard
VulnCheckCVSS v4.0receipt
NVDCVSS v3.1receipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

Running n8n-io n8n? Check your version

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · high privileges required · no user interaction · low attack complexity · attack requirements presentreceipt
ImpactNo confidentiality, integrity or availability impactreceipt
Scored fromCVSS v4.0 · the CNA's vectorreceipt
Weakness classCWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')receipt
Published consequencesCWE-78: Confidentiality, Integrity, Availability, Non-Repudiation: Execute Unauthorized Code or Commands, DoS: Crash, Exit, or Restart, Read Files or Directories, Modify Files or Directories, Read…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed in2.30.1; 2.29.8receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA5.5 MEDIUMreceipt
CVSS, NVD9.8 CRITICALreceipt
Exploit probability0.00322 · top 75% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byVulnCheckreceipt
Recorded changes3 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productn8n-io n8nreceipt
Published rangesn8n < 2.29.8; n8n 2.30.0receipt
Fixed in2.30.1; 2.29.8receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

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. receipt

NVD's analysis a second authority

severity
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-78
affected versions
n8n < 2.29.8; n8n 2.30.0
also scored by
[email protected] 5.5 CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

The CNA scored it 5.5 and NVD 9.8. Both are shown because both were published; we do not pick one.

check it yourself github.com vulncheck.com receipt

Movement the material steps

23 Jul 20260.00441
28 Jul 20260.00322
Show all 3 observations
23 Jul 20260.00441
24 Jul 20260.00261
28 Jul 20260.00322

3 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.00322Published2026-07-22Index as of2026-07-28

The record had been public for 6 days when this index was last written.

Published 2026-07-22 receipt · Index as of 2026-07-28 derived

The pattern, elsewhere

This record is one instance of CWE-78, improper neutralization of special elements used in an os command ('os command injection'). The index holds 6775 prior instances of this class, 121 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2024-9474 · Palo Alto Networks Cloud NGFWmatches 6 of 9KEV listed · 2024receipt
CVE-2026-42271 · BerriAI litellmmatches 4 of 9KEV listed · 2026receipt
CVE-2026-1731 · BeyondTrust Remote Support(RS) & Privileged…matches 3 of 9KEV listed · 2026receipt
CVE-2024-4577 · PHPonly 1 attribute comparableKEV listed · 2024receipt
CVE-2024-51378nothing comparable heldKEV listed · 2024receipt
CVE-2023-43208nothing comparable heldKEV listed · 2023receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

6775 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

Its defect family

n8n-io n8n

Of the 5 records in this family, this is the only one holding a stated fix version: 2.30.1; 2.29.8.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

Browse the index from here

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What usually comes next

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