n8n before 1.123.69 ReDoS via Filter and Switch Node
n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contains a regular expression denial of service (ReDoS) vulnerability in the Filter and Switch nodes, which compile user-supplied regex patterns with new RegExp() and execute them synchronously on the worker thread without complexity validation or executi…
Severity medium: primary CNA CVSS 5.3 v4.0 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-08-20T11:21:13.700Z. Updated 2026-08-21T16:42:34.601Z.