CVE-2026-8596
Essential information
- Published
- 14/05/2026 20:17
- Modified
- 15/05/2026 14:10
- Author
- —
- Creator
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- CVSS
- 8.5 HIGH (v3) 8.5 HIGH (v4.0)
- CISA KEV
- No
- CWE
- —
- CVSS vector
-
—
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CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Privileges required
- —
- User interaction
- —
- Scope
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- NETWORK
- Attack complexity
- LOW
- Attack requirements
- NONE
- Privileges required
- HIGH
- User interaction
- NONE
- Confidentiality (V)
- HIGH
- Confidentiality (S)
- HIGH
- Integrity (V)
- NONE
- Integrity (S)
- HIGH
- Availability (V)
- NONE
- Availability (S)
- HIGH
- Exploit maturity
- NOT_DEFINED
Description
Cleartext storage of sensitive information in the ModelBuilder/Serve component in Amazon SageMaker Python SDK before v2.257.2 and v3 before v3.8.0 might allow a remote authenticated actor to extract the HMAC signing key from SageMaker API responses and forge valid integrity signatures for specially crafted model artifacts, achieving code execution in inference containers. This issue requires a remote authenticated actor with permissions to call SageMaker describe APIs and S3 write access to the model artifact path.
To remediate this issue, we recommend upgrading to Amazon SageMaker Python SDK v2.257.2 or v3.8.0 and rebuild any models previously created with ModelBuilder using the updated SDK.
NVD status
- Status
- Awaiting Analysis — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- ff89ba41-3aa1-4d27-914a-91399e9639e5
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| amazon / sagemaker python sdk | cpe:2.3:a:amazon:sagemaker_python_sdk:2.257.2:*:*:*:*:*:*:* |
| amazon / sagemaker python sdk | cpe:2.3:a:amazon:sagemaker_python_sdk:3.8.0:*:*:*:*:*:*:* |