CVE-2026-86081 n8n: Regular Expression Denial of Service in the Default Blocked-File-Pattern Match via a Git Node Clone Path

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the Git node clone operation matched an attacker-controlled destination path against the default N8NBLOCKFILEPATTERNS regular expression. The pattern ^./.git/.$ allowed catastrophic backtracking and ran...