CVE-2026-54301
n8n: Same-Origin XSS in Respond to Webhook Node
Description
n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, an authenticated user with workflow edit access could configure a Respond to Webhook node to serve binary content with an attacker-controlled Content-Type. The binary response path bypassed the central Content-Security-Policy sandbox header, allowing a public webhook to execute JavaScript in the n8n origin when visited by an authenticated user, with access to that user's session. This vulnerability is fixed in 1.123.55, 2.25.7, and 2.26.2.
INFO
Published Date :
June 23, 2026, 3:44 p.m.
Last Modified :
June 23, 2026, 3:44 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-54301
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
Solution
- Update n8n to version 1.123.55 or later.
- Update n8n to version 2.25.7 or later.
- Update n8n to version 2.26.2 or later.
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CVE-2026-54301 vulnerability anywhere in the article.