CVE-2026-73626
Description
A flaw was found in JupyterLab where a missing 'await' in the PyPIExtensionManager.install() function could lead to an allowlist/blocklist enforcement gap. This vulnerability allows direct callers of install() to bypass security checks, potentially enabling the installation of unauthorized extensions. This issue affects deployments where a custom extension or downstream integration calls install() directly with untrusted input, an allowlist/blocklist is configured, and the PyPI Extension Manager is enabled.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Access Control
Technical Impact: Bypass Protection Mechanism
Frequently Asked Questions
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