CVE-2026-33587 Details
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.
A remote code execution vulnerability has been identified in Open Notebook version 1.8.3 and prior. This issue arises from inadequate user input sanitization, allowing application users to execute Python code—and subsequently operating system commands—within the Docker container. The vulnerability is exploited through server-side template injection (SSTI) in user-created transformations, where injected Jinja2 template expressions are executed on the server.
Users can upgrade to Open Notebook version 1.8.4, which addresses this vulnerability by using Jinja2 'SandboxedEnvironment' for all template rendering. The patched version is available on the project's GitHub releases page.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 7, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/lfnovo/open-notebook/security/advisories/GHSA-f35w-wx37-26q7 | ENISA | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
| CWE-20 | Improper Input Validation | ENISA |
Affected Products
| Product | Versions |
|---|---|
| lfnovo open-notebook | < 1.8.4 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | ENISA |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 7, 2026 | Initial Analysis | [email protected] |
| May 7, 2026 | New CVE Received | ENISA |