CVE-2026-33587

CRITICAL

Open Notebook Transformations - Server-Side Template Injection RCE

Title source: manual

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.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

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

Scores

CVSS v3 10.0

EPSS 0.0023

EPSS Percentile 13.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-20

Status published

Products (2)

lfnovo/open-notebook < 1.8.4

Open Notebook/Open Notebook < 1.8.3

Published May 07, 2026

Tracked Since May 07, 2026