CVE-2023-35948: Novu Open Redirect Vulnerability in Sign-In with GitHub Functionality

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-07-06 · updated 2026-06-17
Weakness: CWE-601

Description

Novu provides an API for sending notifications through multiple channels. Versions prior to 0.16.0 contain an open redirect vulnerability in the "Sign In with GitHub" functionality of Novu's open-source repository. It could have allowed an attacker to force a victim into opening a malicious URL and thus, potentially log into the repository under the victim's account gaining full control of the account. This vulnerability only affected the Novu Cloud and Open-Source deployments if the user manually enabled the GitHub OAuth on their self-hosted instance of Novu. Users should upgrade to version 0.16.0 to receive a patch.

Affected products

novuhq novu: before 0.16 — fixed in 0.16

How to fix

Upgrade to a fixed version: novuhq novu 0.16. Check the vendor advisory for mitigations.

References

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