Vulnerability · Published Sep 22, 2026 · Assigned by GitHub_M
CVE-2026-75517Novu: Cross-Environment Integration Manipulation (IDOR)
Medium 6.5
In plain English
A medium-severity authorization bypass via user-controlled key in api-service from @novu. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).
Official description
Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu integration mutation use cases including remove-integration, update-integration, auto-configure-integration, and set-integration-as-primary look up an integration by integrationId and organizationId without consistently enforcing environmentId. A caller with access to one environment in an organization can target an integration identifier from another environment and delete the integration, modify its credentials, change the primary provider, or trigger auto-configuration. The repository advisory defines both environment API keys and dashboard sessions as affected. The 3.18.0 change enforces the environment boundary only for environment-scoped API-key authentication, while its tests intentionally retain cross-environment dashboard-session behavior, so it does not completely remediate the advisory-defined scope. Version 3.18.0 is a partial fix attempt, and the dashboard-session behavior requires curator resolution.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| novuhq | novu | < 3.18.0 |
| @novu | api-service | < 3.18.0 |
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
References
- https://github.com/novuhq/novu/security/advisories/GHSA-jh6r-hjhp-wh2h x_refsource_CONFIRM
- https://github.com/novuhq/novu/pull/11480 x_refsource_MISC
- https://github.com/novuhq/novu/commit/3d9bbdccf4e36224b5558c245d2b7c085b5d5302 x_refsource_MISC
- https://github.com/novuhq/novu/releases/tag/v3.18.0 x_refsource_MISC