Permissive List of Allowed Inputs Affecting n8n-nodes-base package, versions >=1.36.0 <1.121.7>=2.0.0-rc.0 <2.2.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-N8NNODESBASE-14626210
- published13 Jan 2026
- disclosed25 Dec 2025
- creditBerk Dedekargınoğlu
Introduced: 25 Dec 2025
CVE-2025-68949 (opens in a new tab)How to fix?
Upgrade n8n-nodes-base to version 1.121.7, 2.2.0 or higher.
Overview
n8n-nodes-base is a Base nodes of n8n
Affected versions of this package are vulnerable to Permissive List of Allowed Inputs in the Webhook Node's IP whitelist validation due to includes() method performing partial string matching instead of exact IP comparison. An attacker can gain unauthorized access to restricted endpoints by sending requests from an IP address that partially matches a whitelisted entry, thereby bypassing intended access controls.
Workaround
This vulnerability can be mitigated by adding authentication mechanisms such as shared secrets, HMAC signatures, or API keys, avoiding short or prefix-based whitelist entries, and enforcing IP filtering at the network layer (for example, via reverse proxies or firewalls).