CVE-2026-86079
mediumn8n is an open source workflow automation platform.
Vendor / product: N8n — n8n
n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the Elasticsearch and ElasticSecurity nodes interpolated workflow-controlled index and document identifiers directly into REST request paths. An identifier containing path separators or dot segments could select another index or a cluster administration endpoint under the stored Elasticsearch credential. The affected request construction includes packages/nodes-base/nodes/Elastic/Elasticsearch/GenericFunctions.ts and the missing toPathSegment encoding. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.76 security-advisories@github.com
- https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7 security-advisories@github.com
- https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.2 security-advisories@github.com
- https://github.com/n8n-io/n8n/security/advisories/GHSA-f2cp-m7mv-8jpv security-advisories@github.com