Vulnerability in N8n
CVE-2025-68949
n8n is an open source workflow automation platform. From 1.36.0 to before 2.2.0, the Webhook node’s IP whitelist validation performed partial string matching instead of exact IP comparison. As a result, an incoming request could be accepted if the source IP address merely contained the configured whitelist entry as a substring. This issue affected instances where workflow editors relied on IP-based access controls to restrict webhook access. Both IPv4 and IPv6 addresses were impacted. An attacker with a non-whitelisted IP could bypass restrictions if their IP shared a partial prefix with a trusted address, undermining the intended security boundary. This vulnerability is fixed in 2.2.0.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (19.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- N8n
- N8n-Io N8n — versions >= 1.36.0, < 2.2.0
Weakness classification (CWE)
References
- github.com/n8n-io/n8n/security/advisories/GHSA-w96v-gf22-crwp (Vendor Advisory)
- github.com/n8n-io/n8n/issues/23399 (Patch, Issue Tracking)
- github.com/n8n-io/n8n/pull/23399 (Patch, Issue Tracking)
- github.com/n8n-io/n8n/commit/11f8597d4ad69ea3b58941573997fdbc4de1fec5 (Patch)
Frequently asked questions
- What is CVE-2025-68949?
- CVE-2025-68949 is a medium-severity vulnerability in N8n, classified under Use of Externally-Controlled Format String. CVSS score: 5.3/10. Published 2026-01-13.
- How severe is CVE-2025-68949?
- Medium severity. CVSS v3 base score is 5.3 out of 10.