Dashboard / CVE-2026-85170

CVE-2026-85170

HIGH
MEDIUM Priority: 0.03 BB Relevance: 64/100
Published: 2026-09-03 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: None
VC: High
VI: None
VA: None

Description

n8n versions before 1.123.73, 2.35.4, and 2.36.2 pass message content in the Gmail (v1) and Brevo nodes to the mail composer without verifying it is a string. An authenticated user able to run a workflow can supply an expression that resolves to an object carrying a path or href property, causing the composer to read a local file accessible to the n8n process or fetch an internal URL (SSRF) and attach the result to the outgoing message.

Weakness Classification (1)

Affected Software (7)

VendorProductVersion
n8n n8n < 1.123.73
n8n-io n8n 0 < 1.123.73
n8n-io n8n 2.36.0 < 2.36.2
n8n-io n8n 2.0.0-rc.0 < 2.35.4
n8n-io n8n 0 < 1.123.73
n8n-io n8n 2.36.0 < 2.36.2
n8n-io n8n 2.0.0-rc.0 < 2.35.4

References & Advisories (2)

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:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N

EPSS — Exploitation Probability

0.40%
Raw Score 0.003990
Percentile 34.1%
Date 2026-10-29

Intelligence Sources

mitre ref →
nvd ref →

External Links