CVE-2026-25115
n8n is vulnerable to Python sandbox escape
n8n is an open source workflow automation platform. Prior to version 2.4.8, a vulnerability in the Python Code node allows authenticated users to break out of the Python sandbox environment and execute code outside the intended security boundary. This issue has been patched in version 2.4.8.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
n8n is vulnerable to Python sandbox escape
n8n is an open source workflow automation platform. Prior to version 2.4.8, a vulnerability in the Python Code node allows authenticated users to break out of the Python sandbox environment and execute code outside the intended security boundary. This issue has been patched in version 2.4.8.
- Record
CVE-2026-25115- CVSS 4.0
- 9.4 Critical
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 - Weakness
- CWE-693
- Updated
- 2026-11-02
EUVDEUVD-2026-5414
n8n is an open source workflow automation platform. Prior to version 2.4.8, a vulnerability in the Python Code node allows authenticated users to break out of the Python sandbox environment and execute code outside the intended security boundary. This issue has been patched in version 2.4.8.
- Record
EUVD-2026-5414- CVSS 4.0
- 9.4 Critical
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8398-gmmx-564h
n8n has a Python sandbox escape
Impact
A vulnerability in the Python Code node allows authenticated users to break out of the Python sandbox environment and execute code outside the intended security boundary.
Only authenticated users are able to execute code through Task Runners.
This issue affected any deployment in which the following conditions were met:
- Task Runners were enabled using
N8N_RUNNERS_ENABLED=true(default: false) - Python was enabled
N8N_PYTHON_ENABLED=true - Code Node was enabled (default: true)
In case the N8N_RUNNERS_MODE is set to external (default: internal) the sandbox escape is limited to the sidecar container with lower risk for lateral movement. In that case a lower high severity is more appropriate.
Patches
This vulnerability is fixed in version 2.4.8 and later.
Workarounds
If an immediate upgrade cannot be applied, the following hardening steps are recommended:
- Disable the Code Node by adding
n8n-nodes-base.codeto theNODES_EXCLUDEenvironment variable - Prefer external mode for isolation: run Task Runners in external mode so that untrusted task code executes in a separate sidecar container rather than within the main n8n process. This configuration significantly reduces the risk of in-process memory disclosure caused by unsafe buffer allocations.In external mode, a launcher manages Task Runner processes in a dedicated sidecar environment, separate from the primary n8n instance. See the [n8n documentation](https://docs.n8n.io/hosting/configuration/task-runners/) for configuration details and required environment variables.
Resources
- n8n Documentation — Task Runners — external mode, setup guide, and environment configuration details
- n8n Documentation — Blocking nodes — how to globally disable specific nodes
- Record
GHSA-8398-gmmx-564h- CVSS 4.0
- 9.4 Critical
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 - CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-693
- Updated
- 2026-11-02
NVD
n8n is an open source workflow automation platform. Prior to version 2.4.8, a vulnerability in the Python Code node allows authenticated users to break out of the Python sandbox environment and execute code outside the intended security boundary. This issue has been patched in version 2.4.8.
- Record
CVE-2026-25115- CVSS 4.0
- 9.4 Critical
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 - CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-693
- Updated
- 2026-11-02
OSV
n8n is vulnerable to Python sandbox escape
n8n is an open source workflow automation platform. Prior to version 2.4.8, a vulnerability in the Python Code node allows authenticated users to break out of the Python sandbox environment and execute code outside the intended security boundary. This issue has been patched in version 2.4.8.
- Record
CVE-2026-25115- CVSS 4.0
- 9.4 Critical
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 - Weakness
- CWE-693
- Updated
- 2026-11-02
OSVGHSA-8398-gmmx-564h
n8n has a Python sandbox escape
Impact
A vulnerability in the Python Code node allows authenticated users to break out of the Python sandbox environment and execute code outside the intended security boundary.
Only authenticated users are able to execute code through Task Runners.
This issue affected any deployment in which the following conditions were met:
- Task Runners were enabled using
N8N_RUNNERS_ENABLED=true(default: false) - Python was enabled
N8N_PYTHON_ENABLED=true - Code Node was enabled (default: true)
In case the N8N_RUNNERS_MODE is set to external (default: internal) the sandbox escape is limited to the sidecar container with lower risk for lateral movement. In that case a lower high severity is more appropriate.
Patches
This vulnerability is fixed in version 2.4.8 and later.
Workarounds
If an immediate upgrade cannot be applied, the following hardening steps are recommended:
- Disable the Code Node by adding
n8n-nodes-base.codeto theNODES_EXCLUDEenvironment variable - Prefer external mode for isolation: run Task Runners in external mode so that untrusted task code executes in a separate sidecar container rather than within the main n8n process. This configuration significantly reduces the risk of in-process memory disclosure caused by unsafe buffer allocations.In external mode, a launcher manages Task Runner processes in a dedicated sidecar environment, separate from the primary n8n instance. See the [n8n documentation](https://docs.n8n.io/hosting/configuration/task-runners/) for configuration details and required environment variables.
Resources
- n8n Documentation — Task Runners — external mode, setup guide, and environment configuration details
- n8n Documentation — Blocking nodes — how to globally disable specific nodes
- Record
GHSA-8398-gmmx-564h- CVSS 4.0
- 9.4 Critical
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 - CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-693
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
n8nnpm | before 2.4.8 | 2.4.8 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-25115 is a critical vulnerability (CVSS 9.4) in N8n, published February 4, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.58%, the 48th percentile. Fixed in n8n 2.4.8.
References
github.com/n8n-io/n8n/security/advisories/GHSA-8398-gmmx-564h
nvd.nist.gov/vuln/detail/CVE-2026-25115