CVE-2026-72764 json
n8n before 1.123.67 Module Cache Poisoning via Code Node
published 2026-07-22 3 mo ago modified 2026-10-29 10 d ago also GHSA-9cmh-xcqm-5hqr , EUVD-2026-56143
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
n8n's JavaScript task runner shared a single module cache across all users' Code-node executions. In affected versions (before 1.123.67, 2.31.5, and 2.32.1), a user able to run a Code node could poison a cached module and thereby alter other users' Code-node executions on the same runner, affecting their confidentiality, integrity, or availability. This is a cross-user isolation break within a single n8n instance and does not constitute a sandbox escape or remote code execution. Only multi-user instances running the JS task runner with built-in or external modules enabled are affected.
Patch / fix
- npm n8n 1.123.67, 2.31.5, 2.32.1
- n8n-io n8n 1.123.67, 2.31.5, 2.32.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.8 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H |
| CNA | 4.0 | 5.8 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/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 | <1.123.67 >=2.32.0, <2.32.1 >=2.0.0-rc.0, <2.31.5 |
1.123.67 2.32.1 2.31.5 |
Affected products
- n8n-io n8n
Classification
References
-
github.com
/n8n-io/n8n/security/advisories/GHSA-9cmh-xcqm-5hqr
vendor-advisory, web, mitigation
-
vulncheck.com
/advisories/n8n-before-module-cache-poisoning-via-code-node
third-party-advisory
-
github.com
/n8n-io/n8n
package
-
github.com
/n8n-io/n8n/releases/tag/n8n@1.123.67
web
-
github.com
/n8n-io/n8n/releases/tag/n8n@2.31.5
web
-
github.com
/n8n-io/n8n/releases/tag/n8n@2.32.1
web
Sources
- CVE List CVE-2026-72764
- GitHub Advisory GHSA-9cmh-xcqm-5hqr
- NVD CVE-2026-72764
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.