Answer in brief
CVE-2026-125115 records a Medium severity (CVSS 6.8) vulnerability in Novu: `validateUrlSsrf` permits CGNAT (100.64.0.0/10) destinations — affects Workflow HTTP request step + Webhook filter condition. The current sources do not mark it as known exploited. The current feed maps @novu/application-generic (generic), novuhq/novu (generic), @novu/application-generic (npm), @novu/application-generic (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps @novu/application-generic (generic), novuhq/novu (generic), @novu/application-generic (npm), @novu/application-generic (npm). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| @novu/application-genericgeneric | <3.17.0 | 3.17.0 |
| novuhq/novugeneric | <3.17.0 | 3.17.0 |
| @novu/application-genericnpm | <3.17.0 | 3.17.0 |
| @novu/application-genericnpm | <3.17.0 | 3.17.0 |
Published upstream
Nov 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 2, 2026
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.
Quoted source text, attributed separately from HOL analysis.