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CVE-2026-119408high8.8

n8n before 2.42.6, 2.43.3 and 3.0.1 Code Execution Outside Task Runner Isolation via Deprecated Function Nodes

Impact

n8n versions before 2.42.6, 2.43.3, and 3.0.1 contain a vulnerability via deprecated Function nodes, allowing authenticated users to execute JavaScript. The weakness is due to improper isolation. The stated impact is code execution outside task runner isolation.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

n8n-io · VulnCheck

n8n

2 ranges
VulnCheck version evidence

Package identity

pkg:npm/n8nExplore n8n →

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

2.43.0 → before 2.43.3

semver versions

unaffected

2.43.3

semver versions

unknown

Other versions: unaffected

n8n-io · VulnCheck

n8n

2 ranges
VulnCheck version evidence

Package identity

pkg:npm/n8nExplore n8n →

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 2.42.6

semver versions

unaffected

2.42.6

semver versions

unknown

Other versions: unaffected

n8n-io · VulnCheck

n8n

2 ranges
VulnCheck version evidence

Package identity

pkg:npm/n8nExplore n8n →

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

3.0.0 → before 3.0.1

semver versions

unaffected

3.0.1

semver versions

unknown

Other versions: unaffected

Original source description

n8n before 2.42.6, 2.43.x before 2.43.3, and 3.x before 3.0.1 contains a remote code execution vulnerability via deprecated Function, Function Item, and LangChain Code nodes running outside task runner isolation. Authenticated users who can create, modify, or import workflows naming these hidden node types can execute JavaScript in the n8n main process.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119408

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-653 ↗

Improper Isolation or Compartmentalization

VulnCheck

Related →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

VulnCheck · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*

From (inclusive): 2.43.0

Before: 2.43.3

Any condition may hold

Vulnerable product

cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*

Before: 2.42.6

Any condition may hold

Vulnerable product

cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*

From (inclusive): 3.0.0

Before: 3.0.1

Original applicability statements
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "2.43.0",
            "versionEndExcluding": "2.43.3"
          }
        ]
      }
    ]
  },
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "2.42.6"
          }
        ]
      }
    ]
  },
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "3.0.0",
            "versionEndExcluding": "3.0.1"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 1
VulnCheck

Assigning organization

2026-10-30

What changed

Follow changes
No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.

References

9 sources
github.com/n8n-io/n8n/security/advisories/GHSA-9p7v-45m2-wxgj
vendor-advisoryVulnCheck
github.com/n8n-io/n8n/commit/ea8417e29ad6f8b981d9a04b17283d5d77f2b5bb
patchVulnCheck
github.com/n8n-io/n8n/blob/n8n@2.42.0/packages/nodes-base/nodes/Function/Function.node.ts
technical-descriptionVulnCheck
github.com/n8n-io/n8n/releases/tag/n8n@2.42.6
release-notesVulnCheck
github.com/n8n-io/n8n/releases/tag/n8n@2.43.3
release-notesVulnCheck
github.com/n8n-io/n8n/releases/tag/n8n@3.0.1
release-notesVulnCheck
View 3 more references
abraxaslabs.tech/research/n8n-function-vm2
third-party-advisoryVulnCheck
github.com/n8n-io/n8n
productVulnCheck
www.vulncheck.com/advisories/n8n-before-2.42.6-2.43.3-and-3.0.1-code-execution-outside-task-runner-isolation-via-deprecated-function-nodes
third-party-advisoryVulnCheck