CVE-2026-21877 — exposed on the internet

CVE-2026-21877: CWE-94: Improper Control of Generation of Code ('Code Injection') in n8n-io n8n

Internet exposure observed by OffSeq scans · last 30 days

Found on 4 internet-exposed hosts by OffSeq scans; no in-the-wild exploitation has been observed against OffSeq honeypots in this window.

About CVE-2026-21877

n8n is an open source workflow automation platform. In versions 0.121.2 and below, an authenticated attacker may be able to execute malicious code using the n8n service. This could result in full compromise and can impact both self-hosted and n8n Cloud instances. This issue is fixed in version 1.121.3. Administrators can reduce exposure by disabling the Git node and limiting access for untrusted users, but upgrading to the latest version is recommended.

Vendor: n8n-ioCWE-94CWE-434

OffSeq internet scanning found CVE-2026-21877 on 4 exposed hosts in the last 30 days. OffSeq honeypots have not recorded in-the-wild exploitation of this CVE in the current window — this page tracks its exposure footprint and status; if exploitation begins, the live honeypot signal will appear here.

References