CVE-2026-118678
CVE-2026-118678 · n8n before 2.41.4 and 2.42.1 Prototype Pollution DoS via Workflow History Compaction
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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 history compaction task processes, causing logins and writes to fail with server errors.
CVSS 7.1 · Élevée · EPSS 0,3% · Correctif disponible
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