Moderate severityNVD Advisory· Published Jul 22, 2026· Updated Jul 23, 2026
n8n before 1.123.64 Credential Exposure via LLM Node Execution Data
CVE-2026-65589
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 packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
n8nnpm | < 1.123.64 | 1.123.64 |
n8nnpm | >= 2.30.0, < 2.30.1 | 2.30.1 |
n8nnpm | >= 2.0.0-rc.0, < 2.29.8 | 2.29.8 |
Affected products
1Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-89gh-3pgc-v5h2ghsaADVISORY
- github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2ghsavendor-advisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-65589ghsaADVISORY
- www.vulncheck.com/advisories/n8n-before-credential-exposure-via-llm-node-execution-dataghsathird-party-advisoryWEB
- github.com/n8n-io/n8n/releases/tag/[email protected]ghsaWEB
- github.com/n8n-io/n8n/releases/tag/[email protected]ghsaWEB
- github.com/n8n-io/n8n/releases/tag/[email protected]ghsaWEB
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