CVE-2026-33587

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

CVSS 9.2 CRITICALEPSS 0.2%CWE-20

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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References

https://github.com/lfnovo/open-notebook/security/advisories/GHSA-f35w-wx37-26q7