CVE-2026-65589n8n 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.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-532
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
n8n n8n n8n:n8n | before 1.123.64; before 1.123.64; from 2.0.0 before 2.29.8; from 2.0.0 before 2.29.8; 2.30.0; 2.30.0 | NVD |
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2mitigation, vendor-advisory
- https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-llm-node-execution-datathird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.