Vulnerability details

CVE-2026-1778

TLS disabled by default in select aws/sagemaker-python-sdk configurations

CVSS 4.0

8.2High

Official description

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 scores

Score	Version	Source	Vector
8.2High	4.0	CVEProject cvelistV5 (CNA) (AMZN)	`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N`
5.9Medium	3.1	CVEProject cvelistV5 (CNA) (AMZN)	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N`

Affected products

Vendor	Product	Versions	Source
No product information recorded.

References and advisories

https://aws.amazon.com/security/security-bulletins/2026-004-AWS/ vendor-advisory
https://github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-62rc-f4v9-h543 third-party-advisory
https://github.com/aws/sagemaker-python-sdk/releases/tag/v3.1.1 patch
https://github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0 patch

Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published: 2026-02-02
Last updated: 2026-02-04
State: Published
Assigner (CNA): AMZN

Exploit prediction (EPSS)

0.26%

Probability of exploitation in 30 days

17.7%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Partial

Weaknesses (CWE)

CWE-295
Improper Certificate Validation