# CVE-2026-44789: n8n prototype pollution in HTTP Request node

Source: https://junglewise.ai/threats/cve-2026-44789-n8n-prototype-pollution-in-http-request-node  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-23. Updated: 2026-07-20  
License: CC BY 4.0 with a link back

CVE-2026-44789 · Severity: critical · CVSS 9.9 · Published 2026-06-23

n8n is a popular workflow automation tool used to connect different software services. A security vulnerability in its HTTP Request component allows an authorized user to corrupt the application's internal memory structure. In practice, this could allow an attacker to take full control of the server, potentially leading to data theft or a complete service shutdown.

Technologies: [N8n](https://junglewise.ai/threats/technologies/n8n), [n8n (npm)](https://junglewise.ai/threats/technologies/npm-n8n). Vendors: [N8n](https://junglewise.ai/threats/vendors/n8n), [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2026-44789 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-44789 being exploited in the wild.

**How severe is CVE-2026-44789?** Critical severity, with a CVSS score of 9.9, published 23 June 2026.

**Which products and versions are affected?** N8n < 1.123.43, >= 2.0.0-rc.0 < 2.20.7, >= 2.21.0 < 2.22.1, < 1.123.43, >= 2.0.0-rc.0, < 2.20.7, >= 2.21.0, < 2.22.1; n8n (npm) SEMVER:introduced=0,fixed=1.123.43.

**Is there a fix for CVE-2026-44789?** Yes. n8n (npm): upgrade to 1.123.43 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-44789 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-44789?** Check whether you run N8n or n8n (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- n8n (npm): upgrade to 1.123.43 or later

  ```sh
  npm install n8n@1.123.43
  ```


## Technical details

A prototype pollution vulnerability exists in the n8n HTTP Request node due to unvalidated pagination parameters. An authenticated attacker with permissions to create or modify workflows can exploit this to achieve global prototype pollution (CWE-1321). By manipulating the JavaScript object prototype, the attacker can escalate this to Remote Code Execution (RCE) on the underlying instance. The vulnerability is reachable over the network but requires low-level user privileges. Patches are available in versions 1.123.43, 2.20.7, and 2.22.1.

## Affected products

- n8n-io n8n < 1.123.43, >= 2.0.0-rc.0, < 2.20.7, >= 2.21.0, < 2.22.1

## Identifiers

- CVE-2026-44789
- GHSA-c8xv-5998-g76h

## Timeline

- 2026-05-13: disclosed
- 2026-05-14: advisory

## References

- [https://api.github.com/users/sm1ee](https://api.github.com/users/sm1ee)
- [https://github.com/sm1ee](https://github.com/sm1ee)
- [https://api.github.com/users/sm1ee/gists%7B/gist_id%7D](https://api.github.com/users/sm1ee/gists%7B/gist_id%7D)
- [https://api.github.com/users/sm1ee/repos](https://api.github.com/users/sm1ee/repos)
- [https://avatars.githubusercontent.com/u/19336661?v=4](https://avatars.githubusercontent.com/u/19336661?v=4)
- [https://api.github.com/users/sm1ee/events%7B/privacy%7D](https://api.github.com/users/sm1ee/events%7B/privacy%7D)

## Related threats

- [n8n path traversal in Databricks node](https://junglewise.ai/threats/cve-2026-119557-n8n-from-2-14-0-through-2-46-3-contains-a-path-traversal)
- [n8n remote code execution in deprecated Function nodes](https://junglewise.ai/threats/cve-2026-119408-n8n-before-2-42-6-2-43-x-before-2-43-3-and-3-x-before-3-0-1)
- [n8n Slack Trigger SSRF and token exfiltration](https://junglewise.ai/threats/cve-2026-118679-n8n-before-1-123-83-2-41-4-and-2-42-1-contains-a-server-side)
- [n8n prototype pollution in workflow history compaction](https://junglewise.ai/threats/cve-2026-118678-n8n-before-2-41-4-and-2-42-x-before-2-42-1-contains-a-prototype)
- [n8n Local Gateway deep-link missing confirmation re-pairing](https://junglewise.ai/threats/cve-2026-118677-n8n-before-2-41-4-and-2-42-x-before-2-42-1-contains-a-missing)