CVE-2026-123279JetBrains Datalore

Not on CISA's list of exploited flaws, and not in the news we track.

SeverityCVSS

9.0of 10, critical

010

Fix it in one click

Fix it in your code

Explain it to me

Each opens with a short prompt that points at Global Hack Map's public runbook for CVE-2026-123279. Nothing runs until you send it.

In JetBrains Datalore before 2026.4 code execution was possible in a notebook's computation by view-only collaborators

Not on CISA's list of exploited flaws, and not in the news we track.

SeverityCVSS

9.0of 10, critical

010

Fix it in your code

Explain it to me

Each opens with a short prompt that points at Global Hack Map's public runbook for CVE-2026-123279. Nothing runs until you send it.

In JetBrains Datalore before 2026.4 code execution was possible in a notebook's computation by view-only collaborators