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CVE-2026-27577

N8n code injection

9.9 CRITICALEPSS 1.01%
  1. Published25 Feb 2026

Description

n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, additional exploits in the expression evaluation of n8n have been identified and patched following CVE-2025-68613. An authenticated user with permission to create or modify workflows could abuse crafted expressions in workflow parameters to trigger unintended system command execution on the host running n8n. The issues have 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 all known vulnerabilities. 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 deploy n8n in a hardened environment with restricted operating system privileges and network access to reduce the impact of potential exploitation. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

N8n≥ 2.0.0 < 2.9.3 · ≥ 2.10.0 < 2.10.1 · < 1.123.22

Remediation

Fixed in
N8n≥ 2.9.3

References

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Frequently asked

Is CVE-2026-27577 being actively exploited?

CVE-2026-27577 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.01%.

How severe is CVE-2026-27577?

CVE-2026-27577 has a CVSS 3.1 base score of 9.9, rated critical. EPSS estimates a 1.01% probability of exploitation.

Which products are affected by CVE-2026-27577?

Affected products include N8n.

How do I fix CVE-2026-27577?

Upgrade affected software to a fixed version, for example N8n 2.9.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-27577 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.