CVE-2023-51277

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2024-01-05. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
61%
KEV
Not listed

Published

January 5, 2024

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Aug 3, 2026
Patch available. Sources: github_commit.
generic
https://www.youtube.com/watch?v=c0nawqA_bdI
generic

Comparing 0.1.5...0.1.6 · tuxu/nbviewer-app · GitHub

https://github.com/tuxu/nbviewer-app/compare/0.1.5...0.1.6
github_commit Patch Available

commit dc1e4ddf64c7 (tuxu/nbviewer-app)

Patch available: tuxu/nbviewer-app 0.1.6 (contains commit dc1e4ddf64c7)

https://github.com/tuxu/nbviewer-app/commit/dc1e4ddf64c78e13175a39b076fa0646fc62e581
generic

Resolving common notarization issues | Apple Developer Documentation

https://developer.apple.com/documentation/security/notarizing_macos_software_before_distribution/resolving_common_notarization_issues#3087731

Data Freshness Timeline

(refreshed 10× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 125 total refreshes for this CVE.

  1. 2026-08-07 16:25 UTCEPSS rescore
  2. 2026-08-06 13:45 UTCEPSS rescore
  3. 2026-08-05 19:15 UTCEPSS rescore
  4. 2026-08-04 15:07 UTCEPSS rescore
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  10. 2026-08-01 16:36 UTCOSV refresh
  11. 2026-08-01 04:14 UTCEPSS rescore
  12. 2026-07-30 16:26 UTCEPSS rescore
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  23. 2026-07-23 02:29 UTCEG score recompute
  24. 2026-07-22 23:15 UTCEG score recompute
  25. 2026-07-22 14:06 UTCEPSS rescore
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  1. 2026-07-21 15:23 UTCEPSS rescore
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  6. 2026-07-19 02:27 UTCEPSS rescore
  7. 2026-07-18 10:03 UTCEPSS rescore
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  9. 2026-07-16 17:01 UTCEPSS rescore
  10. 2026-07-15 16:56 UTCEPSS rescore
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  12. 2026-07-15 01:59 UTCEPSS rescore
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  14. 2026-07-14 23:40 UTCOSV refresh
  15. 2026-07-13 22:28 UTCEPSS rescore
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  19. 2026-07-12 05:45 UTCEPSS rescore
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  22. 2026-07-08 15:13 UTCEPSS rescore
  23. 2026-07-07 13:44 UTCEPSS rescore
  24. 2026-07-07 13:44 UTCEPSS rescore
  25. 2026-07-06 16:26 UTCEPSS rescore
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  27. 2026-07-06 02:22 UTCEPSS rescore
  28. 2026-07-05 02:29 UTCEPSS rescore
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  31. 2026-07-02 16:59 UTCEPSS rescore
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  33. 2026-06-30 23:21 UTCEPSS rescore
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  35. 2026-06-28 14:06 UTCEPSS rescore
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  37. 2026-06-28 04:55 UTCEPSS rescore
  38. 2026-06-27 03:07 UTCEPSS rescore
  39. 2026-06-27 00:37 UTCOSV refresh
  40. 2026-06-25 13:48 UTCEPSS rescore
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  42. 2026-06-24 14:04 UTCEPSS rescore
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  44. 2026-06-23 21:31 UTCEPSS rescore
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  46. 2026-06-22 14:24 UTCEPSS rescore
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  48. 2026-06-21 14:55 UTCEPSS rescore
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  50. 2026-06-21 01:58 UTCEPSS rescore
  51. 2026-06-21 01:58 UTCEPSS rescore
  52. 2026-06-19 19:24 UTCEPSS rescore
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  54. 2026-06-18 17:51 UTCEPSS rescore
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  58. 2026-06-15 17:47 UTCEPSS rescore
  59. 2026-06-14 23:16 UTCEPSS rescore
  60. 2026-06-13 22:59 UTCEPSS rescore
  61. 2026-06-13 22:59 UTCEPSS rescore
  62. 2026-06-12 23:11 UTCEPSS rescore
  63. 2026-06-12 23:10 UTCEPSS rescore
  64. 2026-06-11 13:59 UTCEPSS rescore
  65. 2026-06-10 22:17 UTCEPSS rescore
  66. 2026-06-10 13:21 UTCEPSS rescore
  67. 2026-06-09 10:41 UTCOSV refresh
  68. 2026-06-08 14:16 UTCEPSS rescore
  69. 2026-06-08 14:16 UTCEPSS rescore
  70. 2026-06-07 15:24 UTCEPSS rescore
  71. 2026-06-07 15:23 UTCEPSS rescore
  72. 2026-06-06 13:46 UTCEPSS rescore
  73. 2026-06-06 13:46 UTCEPSS rescore
  74. 2026-06-05 22:46 UTCEPSS rescore
  75. 2026-06-05 22:46 UTCEPSS rescore

Frequently asked(5)

What is CVE-2023-51277?
CVE-2023-51277 is a critical vulnerability published on January 5, 2024. nbviewer-app (aka Jupyter Notebook Viewer) before 0.1.6 has the get-task-allow entitlement for release builds.
When was CVE-2023-51277 disclosed?
CVE-2023-51277 was first published in the National Vulnerability Database on January 5, 2024, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-51277 actively exploited?
CVE-2023-51277 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 38.8% of all scored CVEs.
What is the CVSS score of CVE-2023-51277?
CVE-2023-51277 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-51277?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-51277, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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