CVE-2026-44789

criticalpriority · attend · 50EPSS 0.005 · 45 %ileexploit · PoCDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.53% (45th) EPSS

CVSS 9.9 · critical

Is it mine?

17 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

n8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, an authenticated user with permission to create or modify workflows could achieve global prototype pollution via an unvalidated pagination parameter in the HTTP Request node. Combined with other techniques this could lead to RCE on the instance. This vulnerability is fixed in 1.123.43, 2.22.1, and 2.20.7.

cvss

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

9.9

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · 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 USexploitability 3.1 · impact 6

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

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

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

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1321USCWE-1321US

exploits (1)

Public proof-of-concept and weaponised exploit code.

BiiTts/CVE-2026-44789-n8n-PrototypePollution-RCECVE-2026-44789 — n8n <1.123.43 HTTP Request pagination prototype pollution to RCE (NODE_OPTIONS runner-spawn gadget). Lab + automated PoC, verified e2e.PoC · poc_in_github

affected products (17)

Products and version ranges known to be affected.

n8n n8n <1.123.43all versionscert_bundDE
n8n n8n <2.20.7all versionscert_bundDE
n8n n8n <2.21.1all versionscert_bundDE
n8n n8n <2.22.1all versionscert_bundDE
n8n n8n< 1.123.43cert_bundDE
n8n n8n< 2.20.7cert_bundDE
n8n n8n< 2.21.1cert_bundDE
n8n n8n< 2.22.1cert_bundDE
n8n-io n8n≤ < 1.123.43enisa_euvdEU
n8n-io n8n2.0.0-rc.0, → 2.20.7enisa_euvdEU
n8n-io n8n2.21.0, → 2.21.1enisa_euvdEU
n8n n8n< 1.123.43nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
n8n n8n2.0.0 → 2.20.7nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
n8n n8n2.21.0 → 2.22.1nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
npm n8n< 1.123.43osvUSpkg:npm/n8n
npm n8n2.0.0-rc.0 → 2.20.7osvUSpkg:npm/n8n
npm n8n2.21.0 → 2.22.1osvUSpkg:npm/n8n

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1519n8n: Mehrere SchwachstellenDeutsch2026-05-12csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in n8n ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, SQL-Injection-Angriffe durchzuführen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.
GHSA-c8xv-5998-g76hn8n: HTTP Request Node Pagination Prototype Pollution to RCE2026-05-14ghsa · osvUS
## Impact An authenticated user with permission to create or modify workflows could achieve global prototype pollution via an unvalidated pagination parameter in the HTTP Request node. Combined with other techniques this could lead to RCE on the instance. ## Patches The issue has been fixed in n8n versions 1.123.43, 2.20.7, and 2.22.1. 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 HTTP Request node by adding `n8n-nodes-base.httpRequest` to the `NODES_EXCLUDE` environment variable. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures. --- n8n has adopted CVSS 4.0 as primary score for all security advisories. CVSS 3.1 vector strings are provided for backwards compatibility. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

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 2026-10-26

references (3)

External citations — patches, advisories, analysis.

scry

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