CVE-2026-42231
High · 8.8CVSS
8.8
EPSS
0.8%
Published
May 4, 2026
CISA due date
—
The record
n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, a flaw in the xml2js library used to parse XML request bodies in n8n's webhook handler allowed prototype pollution via a crafted XML payload. An authenticated user with permission to create or modify workflows could exploit this to pollute the JavaScript object prototype and, by chaining the pollution with the Git node's SSH operations, achieve remote code execution on the n8n host. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | n8n | 0 | 1.123.32 |
| npm | n8n | 2.17.0 | 2.17.4 |
| npm | n8n | 2.18.0 | 2.18.1 |
Related vulnerabilities
- GHSA-q5f4-99jv-pgg5 n8n has Prototype Pollution in XML Webhook Body Parser that Leads to RCE Same vulnerability
- CVE-2026-54308 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54307 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54304 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54305 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54306 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54302 n8n is an open source workflow automation platform. Also affects n8n
- CVE-2026-54301 n8n is an open source workflow automation platform. Also affects n8n