PT-2026-38419 · Unknown · Open Notebook

Cert-Eu · Published 2026-05-07 · Updated 2026-05-07 · CVE-2026-33588

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

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

Description Insufficient user input validation in the file upload functionality allows an authenticated user to create or modify files within the docker container using path traversal, a technique used to access files and directories that are stored outside the intended folder.

Recommendations Update Open Notebook to a version later than 1.8.3. As a temporary workaround, restrict access to the file upload functionality to minimize the risk of exploitation.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2026-33588

Affected Products

Open Notebook

References · 6

• https://github.com/lfnovo/open-notebook/security/advisories/GHSA-x4q2-89g5-594v · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33588 · Security Note
• https://twitter.com/CVEnew/status/2052400782834823527 · Twitter Post
• https://t.me/CVEtracker/52976 · Telegram Post
• https://t.me/cveNotify/162499 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2052366312463077546 · Twitter Post