PT-2026-38418 · Open Notebook · Open Notebook

Cert-Eu · Published 2026-05-07 · Updated 2026-05-07 · CVE-2026-33587

NVD

CVSS v4.0

9.2

Critical

Base vector

AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2026-33587

Affected Products

Open Notebook

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-33587 · Security Note
• https://github.com/lfnovo/open-notebook/security/advisories/GHSA-f35w-wx37-26q7 · Vendor Advisory