What is the CVSS score of CVE-2023-51277?

CVE-2023-51277 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Which versions of Jupyter Notebook Viewer are affected by CVE-2023-51277?

CVE-2023-51277 presents critical security risk rated CVSS 9.8. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems.. A patch is available.

Is there a public PoC exploit available for CVE-2023-51277?

Yes, a public proof-of-concept exploit is available for CVE-2023-51277. Prioritise patching immediately. EPSS: 0.3%.

How to fix or mitigate CVE-2023-51277?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Vendor patch is available.

Jupyter Notebook Viewer CVE-2023-51277

CRITICAL

2024-01-05 cve@mitre.org

Information Disclosure Jupyter Notebook Viewer

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:33 vuln.today

Patch released

Mar 28, 2026 - 19:33 nvd

Patch available

PoC Detected

Jun 03, 2025 - 15:15 vuln.today

Public exploit code

CVE Published

Jan 05, 2024 - 05:15 nvd

CRITICAL 9.8

DescriptionCVE.org

nbviewer-app (aka Jupyter Notebook Viewer) before 0.1.6 has the get-task-allow entitlement for release builds.

AnalysisAI

nbviewer-app (aka Jupyter Notebook Viewer) before 0.1.6 has the get-task-allow entitlement for release builds. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

nbviewer-app (aka Jupyter Notebook Viewer) before 0.1.6 has the get-task-allow entitlement for release builds. Affected products include: Tinowagner Jupyter Notebook Viewer. Version information: before 0.1.6.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.