CVE-2026-54301

mediumEPSS 0.002 · 14 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.24% (14th) EPSS

CVSS 5.4 · medium

Is it mine?

15 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-18

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.6

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.7–7.6

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.3 · impact 2.7

v3.17.6highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:Nsecondary · OSV

v4.07highCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.07highCVSS: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:Xsecondary · security-advisories@github.com

v4.04.7mediumCVSS: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:U/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USCWE-79US

affected products (15)

Products and version ranges known to be affected.

n8n n8n <1.123.55all versionscert_bundDE
n8n n8n <2.25.7all versionscert_bundDE
n8n n8n <2.26.2all versionscert_bundDE
n8n n8n< 1.123.55cert_bundDE
n8n n8n< 2.25.7cert_bundDE
n8n n8n< 2.26.2cert_bundDE
n8n-io n8n≤ < 1.123.55enisa_euvdEU
n8n-io n8n2.0.0-rc.0, → 2.25.7enisa_euvdEU
n8n-io n8n2.26.0, → 2.26.2enisa_euvdEU
n8n n8n< 1.123.55nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
n8n n8n2.0.0 → 2.25.7nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
n8n n8n2.26.0 → 2.26.2nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
npm n8n< 1.123.55osvUSpkg:npm/n8n
npm n8n2.0.0-rc.0 → 2.25.7osvUSpkg:npm/n8n
npm n8n2.26.0 → 2.26.2osvUSpkg:npm/n8n

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1875n8n: Mehrere SchwachstellenDeutsch2026-06-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in n8n ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, SQL-Injection- und Cross-Site-Scripting-Angriffe durchzuführen, Daten zu manipulieren, einen Denial-of-Service-Zustand zu verursachen oder vertrauliche Informationen offenzulegen, was weitere Angriffe einschließlich einer Rechteausweitung ermöglichen kann.
GHSA-v733-mwr6-fgcmn8n: Same-Origin XSS in Respond to Webhook Node2026-06-16ghsa · osvUS
## Impact 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. ## Patches The issue has been fixed in n8n versions 1.123.55, 2.25.7, and 2.26.2. Users should upgrade to one of these versions or later to remediate the vulnerability. ## Workarounds If upgrading is not immediately possible, administrators should consider the following temporary mitigations: - Limit workflow creation and editing permissions to fully trusted users only. - Disable the Respond to Webhook node by adding `n8n-nodes-base.respondToWebhook` to the `NODES_EXCLUDE` environment variable. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2026-06-23modified 2026-06-26

references (3)

External citations — patches, advisories, analysis.

scry

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