CVE-2026-65598

HIGH
MEDIUM Priority: 0.03 BB Relevance: 58/100
Published: 2026-07-22 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: High
PR: Low
UI: None
S: X
AT: Present
VC: High
VI: High
VA: High

Description

n8n before 1.123.64, 2.29.8, and 2.30.1 contains a TOCTOU race condition in the Git node's clone operation that allows authenticated users to bypass path restrictions by swapping a directory for a symlink after the path is validated but before the clone runs. This lets an attacker plant a crafted repository in the community node directory, which n8n loads as a custom node on the next restart, executing arbitrary JavaScript on the server. Both self-hosted and cloud instances are affected.

Weakness Classification (1)

Affected Software (6)

VendorProductVersion
n8n n8n < 1.123.64
n8n n8n < 1.123.64
n8n n8n 2.0.0 – 2.29.8
n8n n8n 2.0.0 – 2.29.8
n8n n8n 2.30.0
n8n n8n 2.30.0

Bug Bounty Relevance

58 / 100
✓ Network accessible
✓ No user interaction

CVSS Score

8.9 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:L/SA:L/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

EPSS — Exploitation Probability

0.34%
Raw Score 0.003350
Percentile 26.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00335
2026-10-28
0.00335

Intelligence Sources

nvd ref →