CVE-2026-72774

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 contains a credential authorization bypass in the HTTP Request node. An authenticated member with edit access to a shared workflow can reference another user's credential while specifying the credential type via an expression. Because the pre-execution permission check compares the unresolved expression instead of the resolved credential type, the ownership check is skipped and the credential is loaded at execution time, allowing the member to use or exfiltrate a credential they were not granted. Exploitation requires knowing the target credential's identifier.

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

7.1 / 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:N

EPSS — Exploitation Probability

0.44%
Raw Score 0.004380
Percentile 38.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00438
2026-10-28
0.00438

Intelligence Sources

mitre ref →
nvd ref →