Vulnerability · Published May 7, 2026 · Assigned by ENISA
CVE-2026-33588Arbitrary File Write Through Path Traversal
High 7.0
In plain English
A high-severity improper input validation in Open Notebook from Open Notebook. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 4.0)7.0High
Exploit odds (30 days)0.2%top 92.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Open Notebook | Open Notebook | 0 – through 1.8.3 |
Weakness: CWE-20 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N