Vulnerability in N8n
CVE-2026-85167
n8n before 2.35.4 and 2.36.x before 2.36.2 contain a query injection vulnerability in the Elasticsearch Document Get All and Google Cloud Firestore Document Query operations, which build their JSON query by interpolating expression values directly into the query string before parsing. A value containing quote and brace characters can close the intended field and introduce new query operators, turning an intended single-document lookup into a full-collection read.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (32.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
Weakness classification (CWE)
References
- github.com/n8n-io/n8n/security/advisories/GHSA-wxwj-8wv6-vpw2 (vendor-advisory, Mitigation, Vendor Advisory)
- www.vulncheck.com/advisories/n8n-before-2.36.2-query-injection-via-elasticsearc… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-85167?
- CVE-2026-85167 is a medium-severity vulnerability in N8n, classified under Improper Neutralization of Special Elements in Data Query Logic. CVSS score: 6.5/10. Published 2026-09-03.
- How severe is CVE-2026-85167?
- Medium severity. CVSS v3 base score is 6.5 out of 10.