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CVE-2026-21877

CVE

Threat entity extracted from intelligence sources

Frequency
1
occurrences
First Seen
January 7, 2026
Last Seen
January 7, 2026
API
Exploited in Wild
—
Ransomware Use
—
Public Exploits
—
Attack Vector
—

Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Critical n8n RCE Vulnerability Requires Immediate Update70.8

n8n has issued a critical security alert regarding a remote code execution (RCE) vulnerability identified as CVE-2026-21877. Users are urged to update to version 1.121.3 to mitigate potential attacks. This vulnerability affects all users of the n8n platform.

Public Exploits

Checking GitHub for proof-of-concept code…

CVE Details