CVE-2026-72766
Type-confusion in n8n Send Email node allows local file disclosure and SSRF.
Is CVE-2026-72766 being exploited?
Not confirmed. CVE-2026-72766 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.27% probability of exploitation in the next 30 days.
How severe is CVE-2026-72766?
CVE-2026-72766 is rated High with a CVSS score of 8.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-72766?
Yes. A fix has been recorded for CVE-2026-72766. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72766 affect?
CVE-2026-72766 affects n8n < 1.123.67, n8n 2.x < 2.31.5, n8n 2.32.x < 2.32.1, Send Email node (Nodemailer). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72766?
Upgrade to fixed versions; disable/authenticate webhooks and validate mapped inputs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
An attacker supplying crafted non-string input via an unauthenticated webhook can trigger local file disclosure and SSRF through the Send Email (Nodemailer) node.
Patch when possible
- affected< 1.123.67
- affected< 2.32.1
- affected< 2.31.5
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.