Medium severity5.3NVD Advisory· Published Oct 1, 2026

CVE-2026-104002

Description

A fail-open error handling issue within the data masking utility of Powertools for AWS Lambda (Python) might allow actors to read sensitive field values that the application intended to mask.

To remediate this issue, users should upgrade to version 3.35.0.

Affected products

AWS/Powertools for AWS Lambda (Python)llm-create
Range: >=3.35.0
AWS Powertools/powertools-lambda-pythonllm-create
Range: >=3.35.0

Patches

Vulnerability mechanics

References

aws.amazon.com/security/security-bulletins/2026-123-aws/nvd
github.com/aws-powertools/powertools-lambda-python/releases/tag/v3.35.0nvd
github.com/aws-powertools/powertools-lambda-python/security/advisories/GHSA-3vxg-4xv2-jfh5nvd

News mentions

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cvss	0.345
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000