CVE-2026-33696
Prototype pollution in n8n enables authenticated RCE via node config.
Is CVE-2026-33696 being exploited?
Not confirmed. CVE-2026-33696 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 0.79% probability of exploitation in the next 30 days.
How severe is CVE-2026-33696?
CVE-2026-33696 is rated Critical with a CVSS score of 9.4. 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-2026-33696?
Yes. A fix has been recorded for CVE-2026-33696. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-33696 affect?
CVE-2026-33696 affects n8n platform (pre-2.14.1, pre-2.13.3, pre-1.123.27). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-33696?
Upgrade to fixed versions; restrict permissions or disable XML node
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated user can pollute Object.prototype via XML/GSuiteAdmin nodes, enabling remote code execution on the n8n instance.
Patch when possible
- affected< 1.123.27
- affected>= 2.0.0-rc.0 and < 2.13.3
- affected= 2.14.0
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.