PT-2026-38418 · Unknown · Open Notebook

Cert-Eu · Published 2026-05-07 · Updated 2026-05-12 · CVE-2026-33587

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Open Notebook version 1.8.3

Description Insufficient user input sanitization allows an application user to perform Server-Side Template Injection (SSTI), a flaw where an attacker can inject malicious templates into a server-side engine. This enables the execution of Python code and subsequent operating system commands within the docker container through user-created transformations.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2026-33587

Affected Products

Open Notebook

References · 8

• https://github.com/lfnovo/open-notebook/security/advisories/GHSA-f35w-wx37-26q7 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33587 · Security Note
• https://t.me/CVEtracker/52975 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2052368872255148198 · Twitter Post
• https://twitter.com/CVEnew/status/2052400783904424358 · Twitter Post
• https://t.me/cveNotify/162498 · Telegram Post
• https://twitter.com/lyrie_ai/status/2054052991208943640 · Twitter Post
• https://twitter.com/lyrie_ai/status/2054052990248477004 · Twitter Post