CVE-2026-123854 | JetBrains PyCharm up to 2026.2 Jupyter Notebook Widget code injection

November 6, 2026 Yanac

A vulnerability categorized as problematic has been discovered in JetBrains PyCharm up to 2026.2. This vulnerability affects unknown code of the component Jupyter Notebook Widget. The manipulation results in code injection.

This vulnerability is identified as CVE-2026-123854. The attack is only possible with local access. There is not any exploit available.

It is advisable to upgrade the affected component.VulDB Recent EntriesRead More