CVE-2026-27495

criticalPriorität · beachten · 50EPSS 0.008 · 56. PerzentilExploit · PoCDEEUNLUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.79% (56th) EPSS

CVSS 9.9 · critical

Is it mine?

11 products

Prüfe deine Angriffsfläche

Who says so?

6 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · bewertet 2026-10-27

n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could exploit a vulnerability in the JavaScript Task Runner sandbox to execute arbitrary code outside the sandbox boundary. On instances using internal Task Runners (default runner mode), this could result in full compromise of the n8n host. On instances using external Task Runners, the attacker might gain access to or impact other task executed on the Task Runner. Task Runners must be enabled using `N8N_RUNNERS_ENABLED=true`. The issue has been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22. Users should upgrade to one of these versions or later to remediate the vulnerability. If upgrading is not immediately possible, administrators should consider the following temporary mitigations. Limit workflow creation and editing permissions to fully trusted users only, and/or use external runner mode (`N8N_RUNNERS_MODE=external`) to limit the blast radius. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.9

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 8.6–9.9

v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.1 · Auswirkung 6

v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · NCSC-NL NL

v4.09.4criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:Hsecondary · ENISA EU

v4.09.4criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

v4.08.6highCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-94USCWE-94USCWE-94US

Exploits (1)

Öffentlicher Proof-of-Concept- und Exploit-Code.

DexSemon/CVE-2026-27495Proof-of-concept exploit and lab environment for CVE-2026-27495PoC · poc_in_github

betroffene Produkte (11)

Betroffene Produkte und Versionsbereiche.

n8n n8nalle Versionencert_bundDEcpe:/a:n8n:n8n:-
n8n-io n8n≤ < 1.123.22enisa_euvdEU
n8n-io n8n2.0.0, → 2.9.3enisa_euvdEU
n8n-io n8n2.10.0, → 2.10.1enisa_euvdEU
n8n n8n≤ vers:unknown/*ncsc_nlNL
n8n n8n< 1.123.22nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
n8n n8n2.0.0 → 2.9.3nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
n8n n8n2.10.0 → 2.10.1nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
npm n8n< 1.123.22osvUSpkg:npm/n8n
npm n8n2.0.0 → 2.9.3osvUSpkg:npm/n8n
npm n8n2.10.0 → 2.10.1osvUSpkg:npm/n8n

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

NCSC-2026-0248Kwetsbaarheden verholpen in n8n workflow automation platformNL2026-07-17csaf · ncsc_nlNL
n8n heeft meerdere kwetsbaarheden verholpen in het n8n workflow automation platform, specifiek in versies voor 2.10.1, 2.9.3, 1.123.22 en andere gerelateerde releases.
WID-SEC-W-2026-0532n8n: Mehrere SchwachstellenDeutsch2026-02-25csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in n8n ausnutzen, um beliebigen Programmcode auszuführen, um Sicherheitsvorkehrungen zu umgehen, um Daten zu manipulieren, um einen SQL-Injection Angriff durchzuführen, und um einen Cross-Site Scripting Angriff durchzuführen.
GHSA-jjpj-p2wh-qf23n8n has a Sandbox Escape in its JavaScript Task Runner2026-02-25ghsa · osvUS
## Impact An authenticated user with permission to create or modify workflows could exploit a vulnerability in the JavaScript Task Runner sandbox to execute arbitrary code outside the sandbox boundary. On instances using internal Task Runners (default runner mode), this could result in full compromise of the n8n host. On instances using external Task Runners, the attacker might gain access to or impact other task executed on the Task Runner. - Task Runners must be enabled using `N8N_RUNNERS_ENABLED=true`. ## Patches The issue has been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22. 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. - Use external runner mode (`N8N_RUNNERS_MODE=external`) to limit the blast radius. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures. ## Resources - [n8n Documentation — Task Runners](https://docs.n8n.io/hosting/configuration/task-runners/)

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd cert_bund ncsc_nl nvd osv NVD CVE.org MITRE

veröffentlicht 2026-02-25geändert 2026-06-17

Referenzen (16)

Externe Belege — Patches, Meldungen, Analysen.

scry

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