n8n Python Code node sandbox escape
CVE-2026-25115 is a sandbox escape vulnerability in n8n, the open-source workflow automation platform, affecting versions prior to 2.4.8. The flaw resides in the Python Code node and allows an authenticated user to break out of the intended Python sandbox environment and execute code outside that security boundary. The advisory indicates exploitation is possible when Task Runners and the Python/code node are enabled. In default or non-isolated deployments, this can result in code execution in the main n8n execution context; when Task Runners are configured in external mode, the escape is constrained to the sidecar container rather than the primary n8n process.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
n8n-nodes-base.code to the NODES_EXCLUDE environment variable. Also prefer N8N_RUNNERS_MODE=external so untrusted task execution occurs in an isolated sidecar container instead of the main n8n process, and configure Task Runners according to n8n guidance.Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Authenticated Python sandbox escape in n8n Python Code node (when runners/Python/code node enabled) enabling code execution outside intended sandbox boundary.
Python sandbox escape in n8n Python Code node (when runners/Python/code node enabled) allowing code execution outside intended boundary.
An authenticated sandbox escape in n8n's Python Code node that allows execution of code outside the intended Python sandbox boundary (effectively code execution beyond the security controls).
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.