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High, CVSS 7.6amended

JupyterLab vulnerable to potential authentication and CSRF tokens leak

CVE-2024-22421GHSA-44cc-43rp-5947

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (jupyterlab 4.0.11, 3.6.7; notebook 7.0.7), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • PyPI jupyterlab

    Affected
    >= 4.0.0, <= 4.0.10<= 3.6.6
    Fixed in
    3.6.7, 4.0.11

  • PyPI notebook

    Affected
    >= 7.0.0, <= 7.0.6
    Fixed in
    7.0.7

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
7.6 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L
EPSS
  • CVE-2024-22421: 0.67% estimated exploitation activity in the next 30 days; percentile 52.04 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Impact 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. Patches JupyterLab 4.1.0b2, 4.0.11, and 3.6.7 were patched. Workarounds 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. References Vulnerability reported by user @davwwwx via the bug bounty program sponsored by the European Commission and hosted on the Intigriti platform.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from ghsa record GHSA-44cc-43rp-5947

  2. Revision 1 · created ·

    Published from osv record GHSA-44cc-43rp-5947

Agent brief

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# Patch Next advisory brief: CVE-2024-22421

Advisory: JupyterLab vulnerable to potential authentication and CSRF tokens leak
IDs: CVE-2024-22421, GHSA-44cc-43rp-5947
Record: https://patchnext.com/advisories/cve-2024-22421 (revision 2, source checked 26 Oct 2026, 13:12 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.6)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: jupyterlab 4.0.11, 3.6.7; notebook 7.0.7. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI jupyterlab: affected >= 4.0.0, <= 4.0.10; <= 3.6.6; fixed in 3.6.7, 4.0.11
- PyPI notebook: affected >= 7.0.0, <= 7.0.6; fixed in 7.0.7

## Suggested inspection (read-only)
- `python -m pip show jupyterlab`: prints the installed version. Run with the environment that serves production active.
- `python -m pip show notebook`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on jupyterlab, notebook.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-44cc-43rp-5947 (OSV record GHSA-44cc-43rp-5947 lists affected ranges: PyPI jupyterlab >=4.0.0 =0 =7.0.0 <7.0.7 (fixed))
- Verified: https://github.com/advisories/GHSA-44cc-43rp-5947 (GitHub-reviewed advisory GHSA-44cc-43rp-5947 lists affected ranges: PyPI jupyterlab >=4.0.0 =0 =7.0.0 <=7.0.6)

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