CVE-2026-125115 @novu/application-generic: `validateUrlSsrf` permits CGNAT (100.64.0.0/10) destinations — affects Workflow HTTP request step + Webhook filter condition
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-125115?
CVE-2026-125115 is a medium-severity vulnerability in @novu application-generic, published on 9 Nov 2026.
Official description
Novu provides an API for sending notifications through multiple channels. Prior to 3.17.0, validateUrlSsrf in libs/application-generic/src/utils/ssrf-url-validation.ts uses the isPrivateIp deny-list without covering the RFC6598 100.64.0.0/10 shared address space or its IPv4-mapped IPv6 forms. The workflow HTTP request step and webhook filter condition can therefore send server-side requests when a configured literal address or resolved hostname falls in that range. In Alibaba Cloud, 100.100.100.200 may expose instance metadata, while self-hosted and multi-tenant deployments may expose provider-internal services, private infrastructure, service meshes, or VPN resources reachable through CGNAT addressing. This issue is fixed in version 3.17.0.
Weakness: CWE-918
Which versions are affected by CVE-2026-125115?
1 open source package ship an affected version, including @novu/application-generic.
| Package | Affected | Fixed in |
|---|---|---|
@novu/application-generic npm | All versions | 3.17.0 |
How do I fix CVE-2026-125115?
Upgrade @novu/application-generic to 3.17.0 or later.
Is CVE-2026-125115 being exploited?
There is no known exploitation of CVE-2026-125115 in the wild and no public exploit code.
Sources
Also known as GHSA-vg6v-j97m-h5xq.