CVE-2026-25056 json
n8n Arbitrary File Write leading to RCE in n8n Merge Node
published 9mo ago modified 4mo ago also GHSA-hv53-3329-vmrm , EUVD-2026-5415
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
n8n is an open source workflow automation platform. Prior to versions 1.118.0 and 2.4.0, a vulnerability in the Merge node's SQL Query mode allowed authenticated users with permission to create or modify workflows to write arbitrary files to the n8n server's filesystem potentially leading to remote code execution. This issue has been patched in versions 1.118.0 and 2.4.0.
Patch / fix
- npm n8n 1.118.0, 2.4.0
- n8n n8n 1.118.0, 2.4.0
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 9mo ago
Exploit prediction
0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
| CNA | 4.0 | 9.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | n8n | <1.118.0 >=2.0.0, <2.4.0 |
1.118.0 2.4.0 |
Affected products
- n8n-io n8n
Classification
References
-
github.com
/n8n-io/n8n/security/advisories/GHSA-hv53-3329-vmrm
web, patch, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-25056
advisory
-
github.com
/n8n-io/n8n
package
Sources
- CVE List CVE-2026-25056
- GitHub Advisory GHSA-hv53-3329-vmrm
- NVD CVE-2026-25056
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