Vulnerability in N8n
CVE-2026-72772
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (36.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- N8n — versions 2.32.0
- N8n-Io N8n — versions 0, 2.32.1, 2.31.5
Weakness classification (CWE)
References
- github.com/n8n-io/n8n/security/advisories/GHSA-8342-988q-86cr (vendor-advisory, Mitigation, Vendor Advisory)
- www.vulncheck.com/advisories/n8n-before-authentication-bypass-via-token-exchange (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-72772?
- CVE-2026-72772 is a high-severity vulnerability in N8n, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 8.8/10. Published 2026-08-11.
- How severe is CVE-2026-72772?
- High severity. CVSS v3 base score is 8.8 out of 10.