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 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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.76
https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7
https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.2
https://github.com/n8n-io/n8n/security/advisories/GHSA-j535-v25q-vx3q

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-08 22:19

Updated : 2026-09-09 20:16

NVD link : CVE-2026-86081

Mitre link : CVE-2026-86081

CVE.ORG link : CVE-2026-86081

JSON object : View

Products Affected

No product.

CWE

CWE-1333

Inefficient Regular Expression Complexity

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