Medium severity · published May 7, 2026
CVE-2026-33589
Arbitrary File Read via Local File Inclusion (LFI)
6.5
CVSS
0.2%
EPSS
No
On KEV
Description
Lack of user input validation in the file upload functionality of Open Notebook v1.8.3 allows the application user to access local files content from the docker container via path traversal.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ON
Open Notebook · Open Notebook
through 1.8.3 · source: vendor
OP
Open-notebook · Lfnovo
before 1.8.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33589
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-33589
Mitigation
https://github.com/lfnovo/open-notebook/security/advisories/GHSA-842v-h4cj-r646
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