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High severityNVD Advisory· Published Sep 8, 2026· Updated Sep 9, 2026

CVE-2026-86081

CVE-2026-86081

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
n8nnpm
< 1.123.761.123.76
n8nnpm
>= 2.38.0, < 2.38.22.38.2
n8nnpm
>= 2.0.0, < 2.37.72.37.7

Affected products

1
  • N8n Io/N8nllm-fuzzy
    Range: <1.123.76, <2.37.7, <2.38.2

Patches

Vulnerability mechanics

References

6

News mentions

1