CVE catalog

CVE-2026-54301

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 con

[CVE catalog]

Severity
High · CVSS 7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/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
Published
Source
[NVD] · [CVE record]
EPSS
0.24% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Cpen8nNot reported1.123.55fixed
Cpen8nNot reported2.25.7fixed
Cpen8nNot reported2.26.2fixed
Cpen8nNot reported2.26.2fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Cpen8ncpeNot reported1.123.55Not reportedNot reportedNot reported
Cpen8ncpeNot reported2.25.7Not reportedNot reportedNot reported
Cpen8ncpeNot reported2.26.2Not reportedNot reportedNot reported
Cpen8ncpeNot reported2.26.2Not reportedNVD-CVE-2026-54301Not reported

OpenFactory catalog packages

No matching packages in this catalog.

Observed:

References