CVE-2026-42557highCWE-79

CVE-2026-42557: falha de alta gravidade em jupyterlab

jupyterlab: Command linker attributes in HTML enable one-click command execution from untrusted content

Publicada em · Atualizada em

Seguir esta CVE+ Monitorar jupyterlab+ Monitorar notebook

Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.

21Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 8.6epss 0.5%
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to 4.5.7, JupyterLab's HTML sanitizer allowlists data-commandlinker-command and data-commandlinker-args on button elements, while CommandLinker listens for all click events on document.body and executes the named command without checking whether the element came from trusted JupyterLab UI. A notebook with a pre-saved HTML cell output containing a deceptive button can trigger arbitrary JupyterLab commands - including arbitrary code execution - on a single user click, without any code being submitted for execution by the user. This vulnerability is fixed in 4.5.7.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Produtos afetados
jupyter · notebookjupyterlab · jupyterlab
CVEs relacionadas — jupyterlab

No mesmo produto, das mais perigosas para as menos.

CVE-2026-42266HIGHJupyterLab has an Extension Manager API/GUI Policy Discrepancy allowing 3rd party (malicious) extensions install via POST request.EPSS 5.7%CVE-2021-32797HIGHJupyterLab: XSS due to lack of sanitization of the action attribute of an html <form>EPSS 2.7%CVE-2021-32798CRITICALFailure to Sanitize Special Elements into a Different Plane (Special Element Injection) in notebookEPSS 2.1%CVE-2020-26215MEDIUMOpen redirect in Jupyter NotebookEPSS 1.2%CVE-2022-29238MEDIUMForced Browsing in Jupyter NotebookEPSS 1.2%CVE-2022-24758HIGHInsertion of Sensitive Information into Log File affects Jupyter NotebookEPSS 1.1%