CVE-2026-104002
Fail-open error handling in the data masking utility in Powertools for AWS Lambda (Python)
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-390 |
| Vendor | aws |
| Product | powertools-lambda-python |
| Published | Oct 1, 2026 |
| Last Updated | Oct 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
AWS / powertools-lambda-python
3.6.0 ≤ 3.34.0