CVE-2026-85167
CVE-2026-85167 is a medium-severity vulnerability in N8n with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-943.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v4: 6.3
- EPSS exploit prediction: 0% (14th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-943
- Affected product: N8n
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2026-85167?
- CVE-2026-85167 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2026-85167 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-85167?
- CVE-2026-85167 affects N8n. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-85167?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-85167 published?
- CVE-2026-85167 was published on 2026-09-03 and last updated on 2026-09-10.
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-wxwj-8wv6-vpw2
- https://www.vulncheck.com/advisories/n8n-before-2.36.2-query-injection-via-elasticsearch-firestore-nodes
Affected products (1)
- cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
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