CVE WatchOct 1, 2026

CVE-2026-103251

n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a validation bypass vulnerability in the commu

CVSS

7.1

High

EPSS

0.2%

p10

KEV

—

Exploit Today

0-100

Published: Oct 1, 2026 · Last modified: Oct 1, 2026 · CWE-862

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-10-022026-10-25

Technical description

n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a validation bypass vulnerability in the community package installation handler for queue mode deployments. Attackers with Redis write access can bypass name validation, permission checks, checksum verification, and npm safety checks to install arbitrary npm packages across all cluster instances without authentication.

Official references

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