What is GHSA-fmvg-vhqq-r2mj?

GHSA-fmvg-vhqq-r2mj is a security advisory published by GitHub Security Advisories with Medium severity. Duplicate Advisory: Custom Header Credential Values Leaked in Plaintext into LLM Node Execution Data

Why does GHSA-fmvg-vhqq-r2mj have no CVE ID yet?

GitHub Security Advisories published this advisory directly to customers before NVD assigned a CVE ID. This is the embargo-window disclosure pattern — vendors notify customers on day 0; NVD's public record follows days to weeks later.

Which products are affected by GHSA-fmvg-vhqq-r2mj?

GHSA-fmvg-vhqq-r2mj affects 1 product, including: npm/n8n:\u003c 1.123.64.

⚠ Withdrawn by GitHub Security Advisories

Withdrawn: July 22, 2026

GHSA-fmvg-vhqq-r2mjMediumDisclosed before NVD

Duplicate Advisory: Custom Header Credential Values Leaked in Plaintext into LLM Node Execution Data

Vendor

GitHub Security Advisories

Published

July 22, 2026

Last Modified

July 22, 2026

📋 Description

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-89gh-3pgc-v5h2. This link is maintained to preserve external references.

Original 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 products1

npm/n8n:< 1.123.64

🔗 References (4)

https://github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2
https://nvd.nist.gov/vuln/detail/CVE-2026-65589
https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-llm-node-execution-data
https://github.com/advisories/GHSA-fmvg-vhqq-r2mj