CVE-2026-65589

n8n before 1.123.64 Credential Exposure via LLM Node Execution Data

MEDIUM

6.5

CVSS Score

Published: July 22, 2026 at 11:21 AM UTC

Updated: October 29, 2026 at 09:16 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 versions before 1.123.64 fail to properly mask custom HTTP header credentials in LLM sub-node execution data, writing plaintext API keys and secrets to workflow execution records. Authenticated users with access to execution data can read exposed header values and credentials that persist in the database and can be exported.

Affected

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

N8N · N8Nnpm

95%

v < 1.123.642.0.0 ≤ v < 2.29.82.30.0

Affected range stops below 1.123.64, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.29.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.30.1, so it looks safe — our inference, not a vendor statement

N8N · N8N Io

90%

0 ≤ v < 1.123.640 ≤ v < 2.29.80 ≤ v < 2.30.1

Vendor states this is fixed in 1.123.64 (unaffected)

Vendor states this is fixed in 2.29.8 (unaffected)

Vendor states this is fixed in 2.30.1 (unaffected)

Remediation

No guide yet

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

Patch and advisory references

https://github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2

References (2)

Vendor AdvisoryMitigation

Source: cverecord

https://github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2

Third Party Advisory

Source: cverecord

https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-llm-node-execution-data

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-532

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