CVE-2026-86081

published 2026-09-08

CVE-2026-86081: 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…

Priority P3 42 high 7.1 CVSS 4.0

AV N AC L AT N PR L UI N VC N VI N VA H SC N SI N SA N E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU X R X V X RE X U X

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 N8N_BLOCK_FILE_PATTERNS regular expression. The pattern ^(./).git(/.)$ allowed catastrophic backtracking and ran synchronously in the main n8n process. An authenticated workflow editor could therefore freeze the instance with one workflow execution; the affected default is declared in packages/@n8n/config/src/configs/security.config.ts. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
n8n-io	n8n	< 1.123.76	1.123.76
n8n-io	n8n	—	—
n8n-io	n8n	—	—
n8n	n8n	>= 0 < 1.123.76	1.123.76
n8n	n8n	>= 2.0.0 < 2.37.7	2.37.7
n8n	n8n	>= 2.38.0 < 2.38.2	2.38.2

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CWE-1333