CVE-2025-14763

Medium

Description

Missing cryptographic key commitment in the Amazon S3 Encryption Client for Java may allow a user with write access to the S3 bucket to introduce a new EDK that decrypts to different plaintext when the encrypted data key is stored in an "instruction file" instead of S3's metadata record. To mitigate this issue, upgrade Amazon S3 Encryption Client for Java to version 4.0.0 or later.

SeverityMedium

CVSS5.3

Exploit probability—

ProductSoftware.amazon.encryption.s3:amazon-s3-encryption-client-java

PublishedDec 17, 2025

First seenDec 17, 2025

Weakness typeCWE-327CWE-327

How to fix

Update

software.amazon.encryption.s3:amazon-s3-encryption-client-java4.0.0 or later

Patches

github.com/aws/amazon-s3-encryption-client-java/releases/tag/v4.0.0

Vendor advisories

aws.amazon.com/security/security-bulletins/AWS-2025-032/

Affected products

Product	Affected versions	Fixed in
software.amazon.encryption.s3:amazon-s3-encryption-client-javaMaven	v < 4.0.0	4.0.0

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