CVE-2026-33588
CVE-2026-33588 is a high-severity vulnerability in Lfnovo Open-notebook with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v4: 7.0
- EPSS exploit prediction: 0% (8th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-28347
- Weakness: CWE-20
- Affected product: Lfnovo Open-notebook
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-33588?
- 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.
- How severe is CVE-2026-33588?
- CVE-2026-33588 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2026-33588 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-33588?
- CVE-2026-33588 affects Lfnovo Open-notebook. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-33588?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-33588 have an EU (EUVD) identifier?
- Yes. CVE-2026-33588 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28347.
- When was CVE-2026-33588 published?
- CVE-2026-33588 was published on 2026-05-07 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:lfnovo:open-notebook:*:*:*:*:*:*:*:*
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- CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…
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