PatchTheCVECVE-2023-51277: nbviewer-app (aka Jupyter Notebook Viewer) before 0.1.6 has the get-task-allow entitlement for release builds.
CVE-2023-51277 is a critical-severity flaw (CVSS 9.8) affecting jupyter notebook viewer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
nbviewer-app (aka Jupyter Notebook Viewer) before 0.1.6 has the get-task-allow entitlement for release builds.
Why this priority
- Critical severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.1% (top 36%) |
| CISA exploited list | No |
| Published | 2024-01-05 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-51277?
jupyter notebook viewer: upgrade to 0.1.6. Exact commands for each OS are on this page.
Is CVE-2023-51277 being exploited?
CVE-2023-51277 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-51277 affect?
CVE-2023-51277 affects jupyter notebook viewer. Severity is critical (CVSS 9.8). nbviewer-app (aka Jupyter Notebook Viewer) before 0.1.6 has the get-task-allow entitlement for release builds.
How urgent is CVE-2023-51277?
Priority 60/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action