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CVE-2026-86079

n8n: Path Injection in Elasticsearch and ElasticSecurity Nodes via Unencoded Identifiers

MEDIUM
6.5
CVSS Score
Published: September 8, 2026 at 09:26 PM UTC
Updated: September 11, 2026 at 06:40 PM UTC
2 products affected across 2 vendorsN8NN8N

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

N8N· N8Nnpm
95%
v < 1.123.762.0.0 ≤ v < 2.37.72.38.0 ≤ v < 2.38.2
Affected range stops below 1.123.76, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.37.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.38.2, so it looks safe — our inference, not a vendor statement
N8N· N8N Io
60%
v < 1.123.76v < 2.37.7v < 2.38.2
Affected range stops below 1.123.76, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.37.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.38.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

x_refsource_CONFIRMMitigationVendor Advisory
Source: cverecord
https://github.com/n8n-io/n8n/security/advisories/GHSA-f2cp-m7mv-8jpv
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/n8n-io/n8n/releases/tag/[email protected]
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/n8n-io/n8n/releases/tag/[email protected]
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/n8n-io/n8n/releases/tag/[email protected]

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-22

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