TI-2026-20235 Aliases CVE-2026-25051 GHSA-825q-w924-xhgx

n8n Improper CSP Enforcement in Webhook Responses May Allow Stored XSS

LOW 36CWE-79Published 2026-02-04 · Updated 2026-02-05

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: High · High · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

n8n is an open source workflow automation platform. Prior to version 1.123.2, a Cross-Site Scripting (XSS) vulnerability has been identified in the handling of webhook responses and related HTTP endpoints. Under certain conditions, the Content Security Policy (CSP) sandbox protection intended to isolate HTML responses may not be applied correctly. An authenticated user with permission to create or modify workflows could abuse this to execute malicious scripts with same-origin privileges when other users interact with the crafted workflow. This could lead to session hijacking and account takeover. This issue has been patched in version 1.123.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00255 17th percentileScored 2026-11-07

Fix Fixed n8n (n8n-io): 1.123.2n8n (npm): 1.123.2, 1.122.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
n8n	n8n	before 1.123.2	1.123.2	Patch available	CNA
—	n8n (npm)	1.123.0 to before 1.123.2	1.123.2	Patch available	GHSA-825q-w924-xhgx
—	n8n (npm)	before 1.122.5	1.122.5	Patch available	GHSA-825q-w924-xhgx

n8n Vendorn8n Affected before 1.123.2 Fixed in 1.123.2 Patch available CNA
n8n (npm) Vendor— Affected 1.123.0 to before 1.123.2 Fixed in 1.123.2 Patch available GHSA-825q-w924-xhgx
n8n (npm) Vendor— Affected before 1.122.5 Fixed in 1.122.5 Patch available GHSA-825q-w924-xhgx

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:n8n:n8n::::::node.js::*	before 1.123.2	Vulnerable	n8n

cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* Versions before 1.123.2 Vulnerable ·n8n

Remediation

Fix · CNA n8n (n8n-io) Fixed in 1.123.2
Fix · GHSA-825q-w924-xhgx n8n (npm) Fixed in 1.123.2 Advisory →
Fix · GHSA-825q-w924-xhgx n8n (npm) Fixed in 1.122.5 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-25051
2026-10-03 Alias added: GHSA-825q-w924-xhgx

References

Patch 3

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-25051

Other 1

https://github.com/n8n-io/n8n

TI-2025-42131 n8n Vulnerable to Remote Code Execution via Expression Injection KEVCVSS 3.1CRITICAL 10.0
TI-2026-17560 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling CVSS 3.1CRITICAL 10.0
TI-2026-01167 Authenticated users can bypass the Expression sandbox mechanism to achieve full remote… CVSS 3.1CRITICAL 9.9
TI-2026-00644 Sandbox escape in n8n Python task runner allows for arbitrary code execution on the underlying host. CVSS 3.1CRITICAL 9.9
TI-2025-35293 An arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3… CVSS 3.1HIGH 8.8
TI-2023-12275 The n8n package 0.218.0 for Node.js allows Escalation of Privileges. CVSS 3.1HIGH 8.8

See all 178 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences