Open-Source Security Intelligence

Know every vulnerability
before it knows you.

DevGuard continuously monitors your dependencies and alerts you when CVEs like this one affect your stack — with real-time threat intelligence built for developers.

Checkout DevGuardView on GitHub
Search

GHSA-8342-988q-86cr

HighCVSS 8.9 / 10
Published Jul 22, 2026·Last modified Jul 22, 2026
Affected Components(0)

No affected components available

Description

Impact

In an n8n instance, when a validly-signed incoming token was matched to a local account by its email claim, the service did not check that the trusted key's permitted role ceiling covered that account, nor that the email claim was verified. As a result, anyone able to obtain a token accepted by one of the configured trusted keys, for example a trusted issuer that emitted unverified email addresses, could authenticate as any existing user, gaining full account control.

This issue only affects instances where the embed login feature is enabled and at least one trusted key source is configured.

Patches

The issue has been fixed in n8n version 2.32.1. Users should upgrade to this version or later to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations:

  • Disable the embed login feature by setting N8N_TOKEN_EXCHANGE_ENABLED=false.
  • If embed login cannot be disabled, restrict network access to the n8n instance to fully trusted parties only, and audit all configured trusted keys and their allowedRoles assignments.
  • Review auth_identity records for unexpected token-exchange entries linked to high-privilege accounts.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Risk Scores
Base Score
8.9

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
6.0

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

Browse More

High severity
Scan your project

Continuously monitor your dependencies and get alerted when vulnerabilities like this one affect your stack.

Checkout DevGuard