CVE-2026-33587
10.0 · CRITICALOverview
CVE-2026-33587 is a critical-severity vulnerability affecting lfnovo open-notebook. It was published on May 7, 2026 and has a CVSS 3.1 base score of 10.0 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and subsequently OS commands) on the docker container via Server-Side Template Injection (SSTI) for user-created transformations.
Remediation
Check the references section for vendor advisories and patches from lfnovo. Update open-notebook 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 |
|---|---|---|---|
| lfnovo | open-notebook | >= 0, < 1.8.4 | Affected |
Frequently Asked Questions
What is CVE-2026-33587?
CVE-2026-33587 is a critical-severity vulnerability affecting lfnovo open-notebook. It was published on May 7, 2026 and has a CVSS 3.1 base score of 10.0 (CRITICAL).
How severe is CVE-2026-33587?
This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-33587?
Check the references section for vendor advisories and patches from lfnovo. Update open-notebook 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-2026-33587?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-33587 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.
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