CVE-2026-56354
n8n - Cross-Site Scripting and Open Redirect in Form Node
Description
n8n before 1.123.24, 2.10.4, and 2.12.0 (across its 1.x and 2.x branches) contains cross-site scripting and open redirect vulnerabilities in the Form Node due to unsanitized HTML description fields and overly permissive iframe sandbox policies. Authenticated users with workflow creation permissions can inject malicious scripts or redirect parameters to perform stored XSS attacks or phishing redirects against end users.
INFO
Published Date :
July 10, 2026, 3:16 p.m.
Last Modified :
July 10, 2026, 3:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-56354
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update n8n to version 1.123.24 or newer.
- Sanitize HTML description fields in Form Node.
- Review and tighten iframe sandbox policies.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-56354.
| URL | Resource |
|---|---|
| https://github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457c | |
| https://www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-in-form-node |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-56354 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-56354
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-56354 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-56354 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Jul. 10, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'n8n', 'product': 'n8n', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.123.24', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '1.123.24', 'versionType': 'semver'}, {'status': 'affected', 'version': '2.0.0-rc.0', 'lessThan': '2.10.4', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '2.10.4', 'versionType': 'semver'}, {'status': 'affected', 'version': '2.11.0', 'lessThan': '2.12.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '2.12.0', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/n8n', 'defaultStatus': 'unaffected'}, {'vendor': 'n8n', 'product': 'n8n', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.10.4', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '2.10.4', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/n8n', 'defaultStatus': 'unaffected'}, {'vendor': 'n8n', 'product': 'n8n', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.123.24', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '1.123.24', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/n8n', 'defaultStatus': 'unaffected'}] Added Description n8n before 1.123.24, 2.10.4, and 2.12.0 (across its 1.x and 2.x branches) contains cross-site scripting and open redirect vulnerabilities in the Form Node due to unsanitized HTML description fields and overly permissive iframe sandbox policies. Authenticated users with workflow creation permissions can inject malicious scripts or redirect parameters to perform stored XSS attacks or phishing redirects against end users. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N Added CWE CWE-79 Added Reference https://github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457c Added Reference https://www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-in-form-node