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CVE-2026-65589— n8n before 1.123.64 Credential Exposure via LLM Node Execution Data

Quick assessment

Affected
n8n-io n8n
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

n8n是n8n公司开源的一个可扩展的工作流自动化工具。 n8n 1.123.64之前版本、2.30.1之前版本和2.29.8之前版本存在日志信息泄露漏洞，该漏洞源于未正确掩码LLM子节点执行数据中的自定义HTTP标头凭证，将明文API密钥和秘密写入工作流执行记录中，可能导致经过身份验证的用户访问执行数据时读取暴露的标头值和凭证。

CVSS 5.1 · Medium EPSS 0.48% · P40

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 6

VendorProduct Version RangeStatus
n8n-io n8n < 1.123.64 affected
1.123.64 unaffected
< 2.30.1 affected
2.30.1 unaffected
< 2.29.8 affected
2.29.8 unaffected
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I. Basic Information for CVE-2026-65589

Vulnerability Information
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Vulnerability Title
n8n before 1.123.64 Credential Exposure via LLM Node Execution Data
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
n8n 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
n8n是n8n公司开源的一个可扩展的工作流自动化工具。 n8n 1.123.64之前版本、2.30.1之前版本和2.29.8之前版本存在日志信息泄露漏洞，该漏洞源于未正确掩码LLM子节点执行数据中的自定义HTTP标头凭证，将明文API密钥和秘密写入工作流执行记录中，可能导致经过身份验证的用户访问执行数据时读取暴露的标头值和凭证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
n8n-io n8n 0 ~ 1.123.64 -
n8n-io n8n 0 ~ 2.30.1 -
n8n-io n8n 0 ~ 2.29.8 -

II. Public POCs for CVE-2026-65589

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III. Intelligence Information for CVE-2026-65589

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Vendor Advisories for CVE-2026-65589 (2)

Same Patch Batch · n8n-io · 2026-07-22 · 14 CVEs total

CVE-2026-65595 8.9 HIGH n8n before 2.29.8 and 2.30.1 Privilege Escalation via Token Exchange
CVE-2026-65016 7.7 HIGH n8n before 1.123.64, 2.29.8, and 2.30.1 Privilege Escalation via SSO Instance-Role
CVE-2026-65593 6.3 MEDIUM n8n before 1.123.64, 2.29.8, and 2.30.1 SSRF via Dynamic Node Parameters
CVE-2026-65599 5.1 MEDIUM n8n before 1.123.64, 2.29.8, and 2.30.1 Credential Exposure via JWT Header
CVE-2026-65594 5.1 MEDIUM n8n before 2.30.1 Missing OAuth Authorization Check
CVE-2026-65597 n8n before 1.123.64 DOM-Based XSS via Unsandboxed iframe
CVE-2026-65590 n8n before 2.30.1 Shell Sandbox Bypass on Linux Windows
CVE-2026-65591 n8n before 1.123.64 Sanitizer Bypass Remote Code Execution
CVE-2026-65592 n8n before 1.123.64 Stored DOM XSS via cachedResultUrl
CVE-2026-65015 n8n before 2.30.1 Privilege Escalation via run_node_tool
CVE-2026-65596 n8n before 1.123.64 Credential Exfiltration via GraphQL Node
CVE-2026-65014 n8n before 2.28.0 Authentication Bypass via test-webhook
CVE-2026-65598 n8n before 1.123.64 Remote Code Execution via Git Clone

IV. Related Vulnerabilities

Same product: n8n
Same vendor: n8n-io
Same weakness: CWE-532

V. Comments for CVE-2026-65589

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