CVE-2026-86079

MEDIUM CVSS 4.0: 6.3 EPSS 0.32%
Updated Sep 11, 2026
Elasticsearch
Parameter Value
CVSS 6.3 (MEDIUM)
Affected Versions 2.0.0 — 2.38.2
Fixed In 1.123.76
Type CWE-22 (Path Traversal)
Vendor Elasticsearch
Public PoC No

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the Elasticsearch and ElasticSecurity nodes interpolated workflow-controlled index and document identifiers directly into REST request paths. An identifier containing path separators or dot segments could select another index or a cluster administration endpoint under the stored Elasticsearch credential.

The affected request construction includes packages/nodes-base/nodes/Elastic/Elasticsearch/GenericFunctions.ts and the missing toPathSegment encoding. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products 3

Configuration From (including) Up to (excluding)
N8n N8n
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
1.123.76
N8n N8n
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
2.0.0 2.37.7
N8n N8n
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
2.38.0 2.38.2