CVE-2026-1777

HIGHNVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.2 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 94% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.2Exploit: NoneExposed: 0

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

The Amazon SageMaker Python SDK before v3.2.0 and v2.256.0 includes the ModelBuilder HMAC signing key in the cleartext response elements of the DescribeTrainingJob function. A third party with permissions to both call this API and permissions to modify objects in the Training Jobs S3 output location may have the ability to upload arbitrary artifacts which are executed the next time the Training Job is invoked.

CVSS v3
7.2
EG Score
7.2(medium)
EPSS
37.0%
KEV
Not listed

Published

February 2, 2026

Last Modified

April 15, 2026

References (4)

Vendor Advisories for CVE-2026-1777(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
sagemaker1.0.0 ... 2.99.0 (650 versions)2.256.0—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 42× 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 104 total refreshes for this CVE.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
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  11. 2026-07-16 17:03 UTCEPSS rescore
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  17. 2026-07-13 22:30 UTCEPSS rescore
  18. 2026-07-13 09:38 UTCOSV refresh
  19. 2026-07-13 06:12 UTCEPSS rescore
  20. 2026-07-12 05:46 UTCEPSS rescore
  21. 2026-07-11 08:27 UTCEPSS rescore
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  25. 2026-07-07 13:46 UTCEPSS rescore
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  1. 2026-07-06 16:27 UTCEPSS rescore
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  5. 2026-07-04 06:31 UTCEPSS rescore
  6. 2026-07-01 15:06 UTCEPSS rescore
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  8. 2026-06-30 23:22 UTCEPSS rescore
  9. 2026-06-29 14:06 UTCEPSS rescore
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  11. 2026-06-28 04:56 UTCEPSS rescore
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  14. 2026-06-25 13:49 UTCEPSS rescore
  15. 2026-06-25 01:31 UTCOSV refresh
  16. 2026-06-24 14:05 UTCEPSS rescore
  17. 2026-06-23 21:32 UTCEPSS rescore
  18. 2026-06-22 14:25 UTCEPSS rescore
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  20. 2026-06-21 14:56 UTCEPSS rescore
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  22. 2026-06-21 01:59 UTCEPSS rescore
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  24. 2026-06-19 19:25 UTCEPSS rescore
  25. 2026-06-18 17:52 UTCEPSS rescore
  26. 2026-06-17 17:53 UTCEPSS rescore
  27. 2026-06-16 17:52 UTCEPSS rescore
  28. 2026-06-15 17:48 UTCEPSS rescore
  29. 2026-06-14 23:18 UTCEPSS rescore
  30. 2026-06-13 23:00 UTCEPSS rescore
  31. 2026-06-13 23:00 UTCEPSS rescore
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  35. 2026-06-10 13:22 UTCEPSS rescore
  36. 2026-06-08 14:17 UTCEPSS rescore
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  38. 2026-06-07 15:25 UTCEPSS rescore
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  40. 2026-06-06 13:47 UTCEPSS rescore
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  43. 2026-06-05 22:47 UTCEPSS rescore
  44. 2026-06-05 06:10 UTCEPSS rescore
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  46. 2026-06-04 13:12 UTCEPSS rescore
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  48. 2026-06-04 13:12 UTCEPSS rescore
  49. 2026-06-02 20:13 UTCEPSS rescore
  50. 2026-06-02 20:13 UTCEPSS rescore
  51. 2026-06-01 15:27 UTCOSV refresh
  52. 2026-06-01 13:51 UTCEPSS rescore
  53. 2026-06-01 13:51 UTCEPSS rescore
  54. 2026-06-01 13:51 UTCEPSS rescore
  55. 2026-05-31 22:30 UTCEPSS rescore
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  57. 2026-05-31 00:16 UTCEPSS rescore
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  60. 2026-05-29 13:44 UTCEPSS rescore
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  65. 2026-05-27 13:40 UTCEPSS rescore
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  68. 2026-05-26 13:44 UTCEPSS rescore
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  70. 2026-05-26 07:18 UTCEPSS rescore
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  72. 2026-05-26 07:18 UTCEPSS rescore
  73. 2026-05-22 21:16 UTCEPSS rescore
  74. 2026-05-21 22:43 UTCEPSS rescore
  75. 2026-05-20 23:41 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-1777?
CVE-2026-1777 is a high vulnerability published on February 2, 2026. The Amazon SageMaker Python SDK before v3.2.0 and v2.256.0 includes the ModelBuilder HMAC signing key in the cleartext response elements of the DescribeTrainingJob function. A third party with permissions to both call this API and permissions to modify objects in the Training Jobs S3 output…
When was CVE-2026-1777 disclosed?
CVE-2026-1777 was first published in the National Vulnerability Database on February 2, 2026, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-1777 actively exploited?
CVE-2026-1777 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-1777?
CVE-2026-1777 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-1777?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1777, 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.

Dependency Blast Radius

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