Vulnerability · Published Aug 11, 2026 · Assigned by VulnCheck

CVE-2026-72764n8n before 1.123.67 Module Cache Poisoning via Code Node

Medium 5.8

In plain English

A medium-severity security flaw in n8n from n8n-io. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)5.8Medium

Exploit odds (30 days)0.8%top 42.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

n8n's JavaScript task runner shared a single module cache across all users' Code-node executions. In affected versions (before 1.123.67, 2.31.5, and 2.32.1), a user able to run a Code node could poison a cached module and thereby alter other users' Code-node executions on the same runner, affecting their confidentiality, integrity, or availability. This is a cross-user isolation break within a single n8n instance and does not constitute a sandbox escape or remote code execution. Only multi-user instances running the JS task runner with built-in or external modules enabled are affected.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	n8n	1.123.67	GHSA-9cmh-xcqm-5hqr
npm	n8n	2.32.1	GHSA-9cmh-xcqm-5hqr
npm	n8n	2.31.5	GHSA-9cmh-xcqm-5hqr

Affected products (as reported)

Vendor	Product	Versions
n8n-io	n8n	0 – before 1.123.67
n8n-io	n8n	2.32.0 – before 2.32.1
n8n-io	n8n	2.0.0-rc.0 – before 2.31.5

Weakness: CWE-668 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

References

GitHub Security Advisory (GHSA-9cmh-xcqm-5hqr) vendor-advisory
VulnCheck Advisory: n8n before 1.123.67 Module Cache Poisoning via Code Node third-party-advisory