How severe is CVE-2026-25056?

CVE-2026-25056 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-25056 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-25056?

CVE-2026-25056 affects N8n. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-25056?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-25056 have an EU (EUVD) identifier?

Yes. CVE-2026-25056 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5415.

When was CVE-2026-25056 published?

CVE-2026-25056 was published on 2026-02-04 and last updated on 2026-06-17.

CVE-2026-25056

CVE-2026-25056 is a high-severity vulnerability in N8n with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 9.4
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5415
Weakness: CWE-434
Affected product: N8n
Published: 2026-02-04
Last modified: 2026-06-17

Description

n8n is an open source workflow automation platform. Prior to versions 1.118.0 and 2.4.0, a vulnerability in the Merge node's SQL Query mode allowed authenticated users with permission to create or modify workflows to write arbitrary files to the n8n server's filesystem potentially leading to remote code execution. This issue has been patched in versions 1.118.0 and 2.4.0.

Frequently asked questions

What is CVE-2026-25056?: n8n is an open source workflow automation platform. Prior to versions 1.118.0 and 2.4.0, a vulnerability in the Merge node's SQL Query mode allowed authenticated users with permission to create or modify workflows to write arbitrary files to the n8n server's filesystem potentially leading to remote code execution. This issue has been patched in versions 1.118.0 and 2.4.0.
How severe is CVE-2026-25056?: CVE-2026-25056 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-25056 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-25056?: CVE-2026-25056 affects N8n. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-25056?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-25056 have an EU (EUVD) identifier?: Yes. CVE-2026-25056 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5415.
When was CVE-2026-25056 published?: CVE-2026-25056 was published on 2026-02-04 and last updated on 2026-06-17.

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-hv53-3329-vmrm

Affected products (1)

cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*

More vulnerabilities in N8n

CVE-2026-54309 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP…
CVE-2026-21858 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Versions starting with 1.65.0 and below 1.121.0 enable an attacker…
CVE-2026-54305 — Critical (CVSS 9.9): n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, three EE endpoints used by…
CVE-2026-44791 — Critical (CVSS 9.9): n8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, an authenticated user with…
CVE-2026-44789 — Critical (CVSS 9.9): n8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, an authenticated user with…
CVE-2026-54310 — Critical (CVSS 9.9): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, an authenticated user with permission…

All CVEs affecting N8n →

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

CVE-2026-48283 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
CVE-2025-69129 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in WordPress & WooCommerce Scraper Plugin, Import Data from Any Site <= 1.0.7…
CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…

Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →