---
id: "CVE-2026-123279"
page: "https://infrastack.ai/live/CVE-2026-123279"
kind: "vulnerability"
aliases: ["CVE-2026-123279"]
title: "JetBrains Datalore: view-only collaborators can execute code in notebooks"
severity: "critical"
cvss: 9.0
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["datalore", "jetbrains", "notebooks", "other"]
not_affected_if: ["version-2026.4-or-later"]
published_at: "2026-11-06T11:17:06+00:00"
first_seen_at: "2026-11-06T11:41:24+00:00"
updated_at: "2026-11-06T11:41:47+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123279", "first_seen_at": "2026-11-06T11:41:24+00:00"}]
exploit_sources: []
---

# JetBrains Datalore: view-only collaborators can execute code in notebooks

Link for people: https://infrastack.ai/live/CVE-2026-123279 (this .md is for agents)

In JetBrains Datalore before 2026.4, a user with view-only access to a notebook could execute code during the notebook's computation. The sources do not say what the code can reach beyond that.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Datalore version against `2026.4`; the sources state that versions before it are affected.
- Review which collaborators have view-only access to shared notebooks.

## Fix

- Datalore: move to `2026.4` or later, per the product range in the source.

## Timeline

- 2026-11-06T11:41:24+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-123279

## From the sources

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

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_