CVE-2026-72763

HIGH
MEDIUM Priority: 0.03 BB Relevance: 64/100
Published: 2026-08-11 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

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

Description

n8n before 1.123.67, 2.31.5, and 2.32.1 validates credential-access only for a node's top-level credentials and not for credentials referenced inside an Execute Sub-workflow node's inline workflow JSON. A member with Editor access to a shared workflow (when workflow sharing is enabled) who knows a target credential's ID can reference that credential in the inline JSON; it passes save-time and runtime validation and resolves in the parent workflow's project context, allowing the attacker to use or exfiltrate credentials they are not permitted to access.

Weakness Classification (1)

Affected Software (8)

VendorProductVersion
n8n n8n < 1.123.67
n8n n8n 2.32.0
n8n-io n8n 0 < 1.123.67
n8n-io n8n 2.32.0 < 2.32.1
n8n-io n8n 2.0.0-rc.0 < 2.31.5
n8n-io n8n 0 < 1.123.67
n8n-io n8n 2.32.0 < 2.32.1
n8n-io n8n 2.0.0-rc.0 < 2.31.5

Bug Bounty Relevance

64 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.2 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:L

EPSS — Exploitation Probability

0.36%
Raw Score 0.003580
Percentile 29.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00358
2026-10-28
0.00358

Intelligence Sources

mitre ref →
nvd ref →