CVE-2026-1778

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 84% 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
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: None knownExposed: 0

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

Amazon SageMaker Python SDK before v3.1.1 or v2.256.0 disables TLS certificate verification for HTTPS connections made by the service when a Triton Python model is imported, incorrectly allowing for requests with invalid and self-signed certificates to succeed.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
27(Track)
EG Risk 27/100SSVC: Track

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
Severity59% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

February 2, 2026

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Aug 9, 2026
Patch available. Sources: github_release, github.
github Patch Available

GHSA for Insecure TLS Configuration in SageMaker Python SDK · Advisory · aws/sagemaker-python-sdk · GitHub

https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-62rc-f4v9-h543
github_release Patch Available

v3.1.1

Patch available: aws/sagemaker-python-sdk v3.1.1

https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.1.1
github_release Patch Available

v2.256.0

Patch available: aws/sagemaker-python-sdk v2.256.0

https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
generic

Security Findings in SageMaker Python SDK

https://aws.amazon.com/security/security-bulletins/2026-004-AWS/

Vendor Advisories for CVE-2026-1778(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 ... 3.1.0 (653 versions)3.1.1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 26× 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 163 total refreshes for this CVE.

  1. 2026-09-18 23:36 UTCOSV refresh
  2. 2026-09-18 19:27 UTCEPSS rescore
  3. 2026-09-16 14:07 UTCEPSS rescore
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  1. 2026-08-20 22:55 UTCEPSS rescore
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  8. 2026-08-14 11:40 UTCEG score recompute
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  24. 2026-08-02 21:41 UTCEG score recompute
  25. 2026-08-02 02:26 UTCEPSS rescore
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  27. 2026-07-31 01:21 UTCOSV refresh
  28. 2026-07-30 01:30 UTCEPSS rescore
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  55. 2026-07-13 09:38 UTCOSV refresh
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  70. 2026-06-30 23:22 UTCEPSS rescore
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  73. 2026-06-28 04:56 UTCEPSS rescore
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  75. 2026-06-27 03:08 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-1778?
CVE-2026-1778 is a medium vulnerability published on February 2, 2026. Amazon SageMaker Python SDK before v3.1.1 or v2.256.0 disables TLS certificate verification for HTTPS connections made by the service when a Triton Python model is imported, incorrectly allowing for requests with invalid and self-signed certificates to succeed.
When was CVE-2026-1778 disclosed?
CVE-2026-1778 was first published in the National Vulnerability Database on February 2, 2026, 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-2026-1778 actively exploited?
CVE-2026-1778 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 82.8% of all scored CVEs.
What is the CVSS score of CVE-2026-1778?
CVE-2026-1778 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-1778?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1778, 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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