CVSS 4.0
6.3 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:NCVE-2026-86079
Medium (6.3) in n8n n8n. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in n8n 1.123.76, 2.37.7, 2.38.2.
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.
Severity
CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- n8n:n8n
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-f2cp-m7mv-8jpv | npm | n8n | <1.123.76 | 1.123.76 |
| GHSA-f2cp-m7mv-8jpv | npm | n8n | >=2.38.0 <2.38.2 | 2.38.2 |
| GHSA-f2cp-m7mv-8jpv | npm | n8n | >=2.0.0 <2.37.7 | 2.37.7 |