SageMaker Python SDK has Exposed HMAC

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0051, the 44th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 2 Feb 2026. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-rjrp-m2jw-pv9c
• OSV: GHSA-rjrp-m2jw-pv9c
• github.com/aws/sagemaker-python-sdk/security/advisories/GHSA-rjrp-m2jw-pv9c
• nvd.nist.gov/vuln/detail/CVE-2026-1777
• github.com/aws/sagemaker-python-sdk/commit/708c7b2f4135ecaec55973d098f3dbe98b657933
• github.com/aws/sagemaker-python-sdk/commit/fb0d789db4fd5fecde5509963939369f4c7ce63b
• aws.amazon.com/security/security-bulletins/2026-004-AWS
• github.com/aws/sagemaker-python-sdk
• github.com/aws/sagemaker-python-sdk/releases/tag/v2.256.0
• github.com/aws/sagemaker-python-sdk/releases/tag/v3.2.0

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.