CVE-2026-73627
Description
A flaw was found in JupyterLab. An authenticated user can bypass administrator lock rules in the plugin manager by making direct requests to the /lab/api/plugins endpoint. This allows them to enable or disable plugins that were locked, including child plugins and those locked via the 'lock all' mechanism. This vulnerability can impact data integrity and circumvent hardening or restrictions implemented through locked plugins.
Statement
This Moderate severity flaw in JupyterLab allows an authenticated user to circumvent administrative plugin lock rules. Direct API requests can enable or disable plugins intended to be locked, impacting data integrity and bypassing security restrictions in Red Hat OpenShift AI and Migration Toolkit for Applications deployments.
Mitigation
Lock each plugin individually with jupyter labextension lock <plugin-id> instead of “lock all” or locking only a parent multi-plugin extension. That is the GHSA workaround until you upgrade.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.1 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | Low | N/A | N/A |
| Integrity Impact | High | N/A | N/A |
| Availability Impact | None | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Understanding the Weakness (CWE)
Integrity,Availability
Technical Impact: Modify Application Data; DoS: Instability; DoS: Crash, Exit, or Restart
Frequently Asked Questions
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