CVE-2026-102904
published 2026-09-29CVE-2026-102904: JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From JupyterLab 4.0.0 until…
PriorityP337medium5.4CVSS 3.1
AVNACLPRLUINSUCLILAN
EPSS
0.21%
10.1th percentile
JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From JupyterLab 4.0.0 until 4.5.11 and 4.6.4, the PyPI Extension Manager uninstall request reaches ExtensionHandler.post, which validates extension names for installation but passes uninstall names to PyPIExtensionManager.uninstall and python -m pip uninstall without rejecting option-like values. The security impact requires that the PyPI Extension Manager is enabled, the account can call the extension API, and kernels and terminals are disabled or delegated to remote hosts; otherwise the user can already read files and make outbound requests directly. An authenticated user with extension API access can supply a pip requirements option to make the server read a local file or fetch an internal URL, and reflected parse errors can return the first unparsable line or response content. A pip log option can also create or corrupt a chosen path with pip-generated log text, but the requester cannot select an arbitrary disclosed line or arbitrary file content, and the injection does not add code execution or availability impact beyond ordinary package removal. This issue is fixed in JupyterLab 4.5.11 and 4.6.4.
Affected
25 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| jupyterlab | jupyterlab | — | — |
| jupyterlab | jupyterlab | — | — |
| jupyterlab | jupyterlab | >= 4.0.0 < 4.5.11 | 4.5.11 |
| jupyterlab | jupyterlab | >= 4.6.0 < 4.6.4 | 4.6.4 |
| mta | mta-solution-server-rhel9 | — | — |
| rhoai | odh-feature-server-rhel9 | — | — |
| rhoai | odh-th-torch-cpu-py312-rhel9 | — | — |
| rhoai | odh-th-torch-cuda-py312-rhel9 | — | — |
| rhoai | odh-th-torch-rocm-py312-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-codeserver-datascience-cpu-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
nvdv3.15.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
vendor_redhat5.4MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
JupyterLab: Argument injection in JupyterLab extension uninstall exposes server-readable files and internal URLs
ghsa·2026-10-01
CVE-2026-102904 [MEDIUM] CWE-209 JupyterLab: Argument injection in JupyterLab extension uninstall exposes server-readable files and internal URLs
JupyterLab: Argument injection in JupyterLab extension uninstall exposes server-readable files and internal URLs
JupyterLab's PyPI extension manager runs `python -m pip uninstall` with the extension name taken from the request body. `ExtensionHandler.post` validates the name for `cmd=install` but not for `cmd=uninstall`, so a name that begins with `-` reaches the command line and pip reads it as an option rather than as a package.
```python
cmdline = [
sys.executable,
"-m",
"pip",
"uninstall",
"--yes",
"--no-input",
extension,
]
```
An extension name of the form `-r` followed by a path therefore made pip open that path as a requirements file. pip's parse error quotes the line it could not read and names the file it came from, and JupyterLab returned that error in the response body, so t
VulDB
JupyterLab up to 4.5.10/4.6.3 PyPI Extension Manager ExtensionHandler.post injection
vuldb·2026-09-29·CVSS 5.4
CVE-2026-102904 [MEDIUM] JupyterLab up to 4.5.10/4.6.3 PyPI Extension Manager ExtensionHandler.post injection
A vulnerability was found in JupyterLab up to 4.5.10/4.6.3. It has been classified as critical. This affects the function ExtensionHandler.post of the component PyPI Extension Manager. This manipulation causes injection.
This vulnerability is tracked as CVE-2026-102904. The attack is possible to be carried out remotely. No exploit exists.
Upgrading the affected component is recommended.
Red Hat
jupyterlab: JupyterLab: Information disclosure via extension uninstallation argument injection
vendor_redhat·2026-09-29·CVSS 5.4
CVE-2026-102904 [MEDIUM] CWE-88 jupyterlab: JupyterLab: Information disclosure via extension uninstallation argument injection
jupyterlab: JupyterLab: Information disclosure via extension uninstallation argument injection
A flaw was found in JupyterLab. When processing extension uninstallation requests, user-supplied package names are passed to the underlying package manager without properly filtering command-line options. An authenticated user with extension management access can exploit this argument injection flaw to read local server files, access internal network addresses, or overwrite files with generated log text.
Package: mta/mta-solution-server-rhel9 (Migration Toolkit for Applications 8) - Out of support scope
Package: rhoai/odh-feature-server-rhel9 (Red Hat OpenShift AI (RHOAI)) - Fix deferred
Package: rhoai/odh-th06-cpu-torch210-py312-rhel9 (Red Hat OpenShift AI (RHOAI)) - Fix deferred
Package: r
No detection rules found.
No public exploits indexed.
https://github.com/jupyterlab/jupyterlab/commit/a274a8276b9185d03efd4c3c20713d3137ac49e6https://github.com/jupyterlab/jupyterlab/commit/e277bc958e737130ac47b6c5078d08b29298828fhttps://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.11https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.4https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-3325-v43h-43rv
2026-09-29
Published