CVE-2026-118678

n8n before 2.41.4 and 2.42.x before 2.42.1 contains a prototype pollution vulnerability that allows low-privileged users to alter built-in object behaviour by saving workflows with specially named connection keys. Attackers can add keys such as proto to workflow connections, which the periodic...

CVE-2026-118678

The software n8n versions before 2.41.4 and 2.42.x before 2.42.1 is vulnerable to a prototype pollution vulnerability. Low-privileged users can manipulate built-in object behavior by saving workflows containing specially named connection keys, such as __proto__. When the periodic history compacti...

CVE-2026-118678 n8n before 2.41.4 and 2.42.1 Prototype Pollution DoS via Workflow History Compaction

n8n before 2.41.4 and 2.42.x before 2.42.1 contains a prototype pollution vulnerability that allows low-privileged users to alter built-in object behaviour by saving workflows with specially named connection keys. Attackers can add keys such as proto to workflow connections, which the periodic...

EUVD-2026-112384

n8n before 2.41.4 and 2.42.x before 2.42.1 contains a prototype pollution vulnerability that allows low-privileged users to alter built-in object behaviour by saving workflows with specially named connection keys. Attackers can add keys such as proto to workflow connections, which the periodic...

PT-2026-129152

n8n before 2.41.4 and 2.42.x before 2.42.1 contains a prototype pollution vulnerability that allows low-privileged users to alter built-in object behaviour by saving workflows with specially named connection keys. Attackers can add keys such as proto to workflow connections, which the periodic...