High [CVE-2026-73627] Plugin manager lock-rule bypass allows unauthorized plugin control
This high-severity Red Hat Linux advisory covers CVE-2026-73627 affecting Migration Toolkit for Applications 8, Red Hat OpenShift AI (RHOAI).
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Summary
JupyterLab (pip package 'jupyterlab') versions >=4.1.0, =4.6.0,<=4.6.1 contain a plugin manager lock-rule enforcement bypass.
Two server-side enforcement gaps allow an authenticated user to circumvent administrator lock rules by making direct requests to the /lab/api/plugins endpoint, enabling or disabling plugins that were locked — including child plugins of multi-plugin extensions and plugins locked via the 'lock all' mechanism.
This can impact data integrity and bypass hardening or restrictions (e.g., download/upload limits) implemented through locked plugins. Fixed in versions 4.6.2 and 4.5.10.
A flaw was found in JupyterLab. Red Hat severity: Important — CVSS 7.1 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N).
Weakness: CWE-414. Affected Red Hat products: Migration Toolkit for Applications 8; Red Hat OpenShift AI (RHOAI).
Red Hat does not currently list a fixing RHSA for this CVE.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 4.6.2
- 4.5.10
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 4.6.2, 4.5.10. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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