CVE-2026-21893
Authenticated admin can execute arbitrary OS commands via package install in n8n.
Is CVE-2026-21893 being exploited?
Not confirmed. CVE-2026-21893 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 1.4% probability of exploitation in the next 30 days.
How severe is CVE-2026-21893?
CVE-2026-21893 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-2026-21893?
Yes. A fix has been recorded for CVE-2026-21893. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-21893 affect?
CVE-2026-21893 affects n8n <1.120.3, n8n Community package installation. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-21893?
Upgrade to 1.120.3 or newer.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
RCE on n8n host via admin-level command injection during community package install.
Patch when possible
- affected>= 0.187.0 and < 1.120.3
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.