PT-2026-38420 · Unknown · Open Notebook

Cert-Eu · Published 2026-05-07 · Updated 2026-05-07 · CVE-2026-33589

Positive Technologies (AI Summary)

CVSS v4.0

8.2

High

Base vector

AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

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 application user to access local file content from the docker container through path traversal, a technique used to access files and directories that are stored outside the web root folder.

Recommendations Update Open Notebook version 1.8.3 to a version that addresses this issue. 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-2026-33589

Affected Products

Open Notebook

References · 6

• https://github.com/lfnovo/open-notebook/security/advisories/GHSA-842v-h4cj-r646 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33589 · Security Note
• https://t.me/CVEtracker/52977 · Telegram Post
• https://twitter.com/CVEnew/status/2052400781677281673 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2052363752876478676 · Twitter Post
• https://t.me/cveNotify/162500 · Telegram Post