Medium severity · published Sep 3, 2026
CVE-2026-85167
n8n before 2.36.2 Query Injection via Elasticsearch Firestore Nodes
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
before 2.36.2; before 2.35.4 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85167
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85167
Mitigation
https://github.com/n8n-io/n8n/security/advisories/GHSA-wxwj-8wv6-vpw2
Third Party Advisory
https://www.vulncheck.com/advisories/n8n-before-2.36.2-query-injection-via-elasticsearch-firestore-nodes
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