Description
JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook and Architecture. Users of JupyterLab who click on a malicious link may get their `Authorization` and `XSRFToken` tokens exposed to a third party when running an older `jupyter-server` version. JupyterLab versions 4.1.0b2, 4.0.11, and 3.6.7 are patched. No workaround has been identified, however users should ensure to upgrade `jupyter-server` to version 2.7.2 or newer which includes a redirect vulnerability fix.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| jupyterlab | jupyterlab | < 3.6.7, >=4.0.0,< 4.0.11 | — |
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 | 4.0.11+ds1-1 | — |
| Debian 13 | jupyterlab | 4.0.11+ds1-1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | jupyterlab | >= 4.0.0, < 4.0.11 | 4.0.11 | GHSA-44cc-43rp-5947 |
| PyPI | jupyterlab | < 3.6.7 | 3.6.7 | GHSA-44cc-43rp-5947 |
| PyPI | jupyterlab | < 3.6.7 · >= 4.0.0, < 4.0.11 | 3.6.7, 4.0.11 | PYSEC-2026-2534 |
| PyPI | notebook | >= 7.0.0, < 7.0.7 | 7.0.7 | GHSA-44cc-43rp-5947 |