Description
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
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 | jupyter-notebook | 5.7.8-1 | — |
| Debian 13 | jupyter-notebook | 5.7.8-1 | — |
| Debian 12 | jupyter-notebook | 5.7.8-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | jupyter-notebook | 6.4.8-1ubuntu0.1 | USN-5585-1 |
| Ubuntu 20.04 LTS | jupyter-notebook | 6.0.3-2ubuntu0.1 | USN-5585-1 |
| Ubuntu 18.04 LTS | jupyter-notebook | 5.2.2-1ubuntu0.1 | USN-5585-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | jupyter-notebook | < 5.7.6 | 5.7.6 | GHSA-hhx8-cr55-qcxx |
| PyPI | notebook | < 5.7.6 | 5.7.6 | GHSA-hhx8-cr55-qcxx |
Advisories 1
- USN-5585-1 jupyter-notebook vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
References
- https://github.com/jupyter/notebook/compare/f3f00df...05aa4b2
- FEDORA-2019-a6e1287e76 vendor-advisory
- FEDORA-2019-9e67979b2a vendor-advisory