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Vulnerabilities

CVE-2026-59206 | BDVDB-2026-346646 Detail

n8n-ion8n

Description#

n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated user with the default workflow:create permission could pollute Object.prototype through a crafted workflow saved, updated, or imported via the workflow API, allowing unauthenticated requests to be treated as a privileged user and exposing user and project listing endpoints. This issue is fixed in versions 1.123.61, 2.27.4, and 2.28.1.

Impact#

Per CVSS v4.0: confidentiality impact high, integrity impact low, availability impact none. Attack vector: network.

Weaknesses#

  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.