CVE-2026-73627
published 2026-08-13CVE-2026-73627: 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…
PriorityP340medium6CVSS 4.0
AVNACLATPPRLUINVCLVIHVANSCNSINSANEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
EPSS
0.42%
35.4th percentile
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.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| jupyterlab | jupyterlab | 4.1.0 – 4.5.9 | — |
| jupyterlab | jupyterlab | 4.6.0 – 4.6.1 | — |
| mta | mta-solution-server-rhel9 | — | — |
| rhoai | odh-feature-server-rhel9 | — | — |
| rhoai | odh-th06-cpu-torch210-py312-rhel9 | — | — |
| rhoai | odh-th06-cpu-torch291-py312-rhel9 | — | — |
| rhoai | odh-th06-cuda130-torch210-py312-rhel9 | — | — |
| rhoai | odh-th06-cuda130-torch291-py312-rhel9 | — | — |
| rhoai | odh-th06-rocm64-torch291-py312-rhel9 | — | — |
| rhoai | odh-workbench-jupyter-datascience-cpu-py312-rhel9 | — | — |
| rhoai | odh-workbench-jupyter-minimal-cpu-py312-rhel9 | — | — |
| rhoai | odh-workbench-jupyter-minimal-cuda-py312-rhel9 | — | — |
| rhoai | odh-workbench-jupyter-minimal-rocm-py312-rhel9 | — | — |
| rhoai | odh-workbench-jupyter-pytorch-cuda-py312-rhel9 | — | — |
| rhoai | odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9 | — | — |
| rhoai | odh-workbench-jupyter-pytorch-rocm-py312-rhel9 | — | — |
| rhoai | odh-workbench-jupyter-tensorflow-cuda-py312-rhel9 | — | — |
| rhoai | odh-workbench-jupyter-tensorflow-rocm-py312-rhel9 | — | — |
| rhoai | odh-workbench-jupyter-trustyai-cpu-py312-rhel9 | — | — |
CVSS provenance
nvdv4.06.0MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vendor_redhat6.0MEDIUM
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Red Hat
jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control
vendor_redhat·2026-08-13·CVSS 6.0
CVE-2026-73627 [MEDIUM] CWE-414 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control
jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control
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. An authenticated user can bypass administrator lock rules in the plugi
GHSA
JupyterLab (pip package 'jupyterlab') versions >=4.1.0,<=4.5.9 and >=4.6.0,<=4.6.1 contain a plugin manager lock-rule enforcement bypass.
ghsa_unreviewed·2026-08-13
CVE-2026-73627 [MEDIUM] CWE-602 JupyterLab (pip package 'jupyterlab') versions >=4.1.0,<=4.5.9 and >=4.6.0,<=4.6.1 contain a plugin manager lock-rule enforcement bypass.
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-73627 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control [fedora-all]
bugzilla·2026-08-18·CVSS 6.0
CVE-2026-73627 [MEDIUM] CVE-2026-73627 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control [fedora-all]
CVE-2026-73627 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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
Bugzilla
CVE-2026-73627 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control [epel-all]
bugzilla·2026-08-18·CVSS 6.0
CVE-2026-73627 [MEDIUM] CVE-2026-73627 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control [epel-all]
CVE-2026-73627 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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 in
Bugzilla
CVE-2026-73627 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control
bugzilla·2026-08-13·CVSS 6.0
CVE-2026-73627 [MEDIUM] CVE-2026-73627 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control
CVE-2026-73627 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control
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.
2026-08-13
Published