CVE-2026-33587criticalCWE-20

CVE-2026-33587: critical vulnerability in Open Notebook

Remote Code Execution (RCE) via Server-Side Template Injection (SSTI)

Published

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28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.2epss 0.2%
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N
Affected products
Open Notebook · Open Notebook
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CVE-2026-33588HIGHArbitrary File Write Through Path TraversalEPSS 0.2%CVE-2026-33589HIGHArbitrary File Read via Local File Inclusion (LFI)EPSS 0.2%CVE-2026-28201HIGHSurrealDB Injection on Open NotebookEPSS 0.1%