CVE-2021-32862
7.5 · HIGHOverview
CVE-2021-32862 is a high-severity vulnerability affecting jupyter nbconvert. It was published on August 18, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
The GitHub Security Lab discovered sixteen ways to exploit a cross-site scripting vulnerability in nbconvert. When using nbconvert to generate an HTML version of a user-controllable notebook, it is possible to inject arbitrary HTML which may lead to cross-site scripting (XSS) vulnerabilities if these HTML notebooks are served by a web server (eg: nbviewer).
Remediation
Check the references section for vendor advisories and patches from jupyter. Update nbconvert to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| jupyter | nbconvert | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2021-32862?
CVE-2021-32862 is a high-severity vulnerability affecting jupyter nbconvert. It was published on August 18, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-32862?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-32862?
Check the references section for vendor advisories and patches from jupyter. Update nbconvert to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-32862?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-32862 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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