CVE-2026-54312

highpriority · track · 34EPSS 0.004 · 33 %ileDEEUNLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.40% (33rd) EPSS

CVSS 8.5 · high

Is it mine?

10 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-21

n8n is an open source workflow automation platform. Prior to 2.24.0, an authenticated user with permission to create or modify workflows could achieve global prototype pollution via the Microsoft SQL node by supplying a crafted value as the table parameter. This pollutes Object.prototype process-wide for the lifetime of the n8n server process, causing application-wide validation failures and rendering the n8n instance completely non-functional until restarted. This vulnerability is fixed in 2.24.0.

cvss

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

8.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.1–8.5

v3.18.5highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:Hprimary · NVD / NIST USexploitability 3.1 · impact 4.7

v3.18.5highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:Hsecondary · OSV

v3.18.5highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:Hsecondary · NCSC-NL NL

v4.07.2highCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.07.2highCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/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

v4.05.1mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/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-1321USCWE-1321USCWE-1321US

affected products (10)

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≤ < 2.24.0enisa_euvdEU
n8n n8n≤ vers:unknown/*ncsc_nlNL
n8n n8n< 2.24.0nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
npm n8n< 2.24.0osvUSpkg:npm/n8n

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2026-0212Kwetsbaarheden verholpen in n8n workflow automation platformNL2026-06-29csaf · ncsc_nlNL
n8n heeft meerdere kwetsbaarheden verholpen in het n8n workflow automation platform, specifiek in versies voor 1.123.55, 2.24.0, 2.25.7, 2.26.1 en 2.26.2.
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-x6p3-m6h9-fx7rn8n: Microsoft SQL Node Prototype Pollution2026-06-16ghsa · osvUS
## Impact An authenticated user with permission to create or modify workflows could achieve global prototype pollution via the Microsoft SQL node by supplying a crafted value as the table parameter. This pollutes `Object.prototype` process-wide for the lifetime of the n8n server process, causing application-wide validation failures and rendering the n8n instance completely non-functional until restarted. ## Patches The issue has been fixed in n8n version 2.24.0. Users should upgrade to this version 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 Microsoft SQL node by adding `n8n-nodes-base.microsoftSql` 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 ncsc_nl nvd osv NVD CVE.org MITRE

published 2026-06-23modified 2026-06-25

references (3)

External citations — patches, advisories, analysis.

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