CVE-2026-28201
HighSummary
Open Notebook version 1.8.1 has improper input validation and an overly permissive default CORS configuration, allowing a remote attacker to trick a legitimate user into altering or deleting arbitrary database entries via a specially crafted malicious URL.
Risk Assessment
An attacker could exploit this vulnerability to modify database entries, potentially leading to data integrity loss and possible data exfiltration, depending on the deployment.
Recommendation
It is recommended to review and improve input validation and adjust CORS configuration to mitigate the risk of attacks.
Other vulnerabilities in Open Notebook v1.8.1
See all- CVE-2026-33588High
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.
- CVE-2026-33587Critical
Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and subsequently OS commands) on the docker container via Server-Side Template Injection (SSTI) for user-created transformations.
Original NVD description (English source)
An improper input validation, together with an overly permissive default CORS configuration in Open Notebook v1.8.1 allows remote attacker to trick a legitimate user to alter or delete arbitrary database entries via specially crafted malicious URL. Depending on the deployment, data exfiltration is also possible.

