GHSA-443w-3rq3-5m5h
Critical · 9.3AWS SDK for Java 2.0: Improper Handling of Special Characters in CloudFront Signing Utilities
CVSS
9.3
EPSS
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Published
Mar 27, 2026
CISA due date
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The record
This notification is related to the [CloudFront signing utilities](https://github.com/aws/aws-sdk-java-v2/blob/master/services/cloudfront/src/main/java/software/amazon/awssdk/services/cloudfront/CloudFrontUtilities.java) in the AWS SDK for Java v2, which are used to generate Amazon CloudFront signed URLs and signed cookies. A defense-in-depth enhancement has been implemented to improve handling of special characters, such as double quotes and backslashes, in input values.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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