Description
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. 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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| jupyterlab | jupyterlab | 4.6.0 – ≤ 4.6.1, 4.1.0 – ≤ 4.5.9 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | jupyterlab | 4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-4 | — |
| Debian 13 | jupyterlab | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | jupyterlab | No fix yet | — |
| Ubuntu 26.04 LTS | jupyterlab | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-jupyterlab | 4.5.10-1.1 | openSUSE-SU-2026:11634-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | jupyterlab | >= 4.6.0, < 4.6.2 | 4.6.2 | GHSA-h5v5-8746-g7mm |
| PyPI | jupyterlab | >= 4.1.0, < 4.5.10 | 4.5.10 | GHSA-h5v5-8746-g7mm |
Advisories 1
- openSUSE-SU-2026:11634-1 jupyter-jupyterlab-4.5.10-1.1 on GA media SUSE / openSUSE Security Updates · Aug 29, 2026
References
- GitHub Security Advisory (GHSA-h5v5-8746-g7mm) vendor-advisory
- VulnCheck Advisory: JupyterLab 4.6.0 Plugin Manager Lock-Rule Enforcement Bypass third-party-advisory