CVE-2025-59842
MEDIUMDescription
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to version 4.4.8, links generated with LaTeX typesetters in Markdown files and Markdown cells in JupyterLab and Jupyter Notebook did not include the noopener attribute. This is deemed to have no impact on the default installations. Theoretically users of third-party LaTeX-rendering extensions could find themselves vulnerable to reverse tabnabbing attacks if links generated by those extensions included target=_blank (no such extensions are known at time of writing) and they were to click on a link generated in LaTeX (typically visibly different from other links). This issue has been patched in version 4.4.8.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 13% of all known CVEs.
References
Related Vulnerabilities
Other CWE-1022 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2022-1583 | Medium | 6.5 | 1.3% | - | Fix |
| CVE-2021-39112 | Medium | 4.8 | 0.7% | - | Fix |
| CVE-2021-33697 | Medium | 6.1 | 0.6% | - | - |
| CVE-2020-36624 | Medium | 6.3 | 0.6% | - | Fix |
| CVE-2022-2600 | Medium | 5.4 | 0.5% | - | - |
| CVE-2018-25058 | Medium | 4.2 | 0.5% | - | Fix |
Common questions
How do I fix CVE-2025-59842?
Upgrade jupyterlab on debian unstable to 4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-3 or later.
Is CVE-2025-59842 being actively exploited?
Not that we know of. CVE-2025-59842 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.22% is the estimated probability that it will be exploited in the next 30 days. That is higher than 13% of all scored CVEs.
How severe is CVE-2025-59842?
CVE-2025-59842 has a CVSS v3 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2025-59842 affect?
Published advisories record a fix for jupyterlab (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2025-59842
Markdown
[](https://tridentstack.com/cve/CVE-2025-59842)HTML
<a href="https://tridentstack.com/cve/CVE-2025-59842"><img src="https://tridentstack.com/cve/badge/CVE-2025-59842.svg" alt="CVE-2025-59842"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-22.