Open Notebook up to 1.8.3 Docker Container path traversal

Summaryinfo

A vulnerability classified as critical has been found in Open Notebook up to 1.8.3. The affected element is an unknown function of the component Docker Container Handler. The manipulation leads to path traversal. This vulnerability is traded as CVE-2026-33588. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Open Notebook up to 1.8.3. This issue affects some unknown processing of the component Docker Container Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is integrity, and availability. The summary by CVE is:

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.

The weakness was shared by CERT-EU as GHSA-x4q2-89g5-594v. The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-33588 since 03/23/2026. The exploitation is known to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-28347). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• Open Notebook

Version

• 1.8.0
• 1.8.1
• 1.8.2
• 1.8.3

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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