Vulnerability · Published Aug 11, 2026 · Assigned by VulnCheck

CVE-2026-72772n8n before 2.32.1 Authentication Bypass via Token Exchange

High 8.9

In plain English

A high-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 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.9High

Exploit odds (30 days)0.4%top 60.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

n8n before 2.32.1 (and before 2.31.5) is vulnerable to account takeover via the Token Exchange Embed Login feature. When a validly-signed incoming token was matched to a local account by its email claim, the service did not verify that the email claim was verified, nor that the trusted key's permitted role ceiling covered that account. As a result, anyone able to obtain a token accepted by a configured trusted key (for example, a trusted issuer emitting unverified email addresses) could authenticate as any existing user and gain full account control. This issue only affects instances where the embed login feature is enabled and at least one trusted key source is configured.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	n8n	2.32.1	GHSA-8342-988q-86cr
npm	n8n	2.31.5	GHSA-8342-988q-86cr

Affected products (as reported)

Vendor	Product	Versions
n8n-io	n8n	2.32.0 – before 2.32.1
n8n-io	n8n	0 – before 2.31.5

Weakness: CWE-640 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L

References

GitHub Security Advisory (GHSA-8342-988q-86cr) vendor-advisory
VulnCheck Advisory: n8n before 2.32.1 Authentication Bypass via Token Exchange third-party-advisory