CVE-2026-33588

High

Description

Lack of user input validation in the file upload functionality of Open Notebook v1.8.3 allows the application user to create or modify files on the docker container via path traversal.

SeverityHigh

CVSS8.1

Exploit probability—

ProductLfnovo Open-notebook

PublishedMay 7, 2026

First seenMay 7, 2026

Weakness typeCWE-20Improper input validation

How to fix

Update

lfnovo open-notebook1.8.4 or later

Vendor advisories

github.com/lfnovo/open-notebook/security/advisories/GHSA-x4q2-89g5-594v

Affected products

Product	Affected versions	Fixed in
lfnovo open-notebook	v < 1.8.4	1.8.4

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