PYSEC-2026-1706
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/notebook/PYSEC-2026-1706.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-1706
- Aliases
- Published
- 2026-07-07T11:45:30Z
- Modified
- 2026-07-13T16:42:58Z
- Severity
-
- 7.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L CVSS Calculator
- Summary
- JupyterLab vulnerable to potential authentication and CSRF tokens leak
- Details
-
Impact
Users of JupyterLab who click on a malicious link may get their
AuthorizationandXSRFTokentokens exposed to a third party when running an olderjupyter-serverversion.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-serverto 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.
- References
-
- https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-44cc-43rp-5947
- https://nvd.nist.gov/vuln/detail/CVE-2024-22421
- https://github.com/jupyterlab/jupyterlab/commit/19bd9b96cb2e77170a67e43121637d0b5619e8c6
- https://github.com/jupyterlab/jupyterlab/commit/1ef7a4fa0202ebdf663e1cc0b45c8813a34a0b96
- https://github.com/jupyterlab/jupyterlab/commit/fccd83dc4441da0384ee3fd1322c3b2d9ad4caaa
- https://github.com/jupyterlab/jupyterlab
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UQJKNRDRFMKGVRIYNNN6CKMNJDNYWO2H
- https://pypi.org/project/notebook
- https://github.com/advisories/GHSA-44cc-43rp-5947
Affected packages
PyPI / notebook
Package
- Name
- notebook
- View open source insights on deps.dev
- Purl
- pkg:pypi/notebook