CVE-2025-14764
Medium
Description
Missing cryptographic key commitment in the Amazon S3 Encryption Client for Go 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 Go to version 4.0 or later.
SeverityMedium
CVSS5.3
Exploit probability—
ProductGithub.com/aws/amazon-s3-encryption-client-go/v3
PublishedDec 17, 2025
First seenDec 17, 2025
Weakness typeCWE-327CWE-327
How to fix
Update
- github.com/aws/amazon-s3-encryption-client-go/v34.0.0 or later
- github.com/aws/amazon-s3-encryption-client-go/v44.0.0 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/aws/amazon-s3-encryption-client-go/v3Go | v < 4.0.0, No range specified | 4.0.0 |
| github.com/aws/amazon-s3-encryption-client-goGo | No range specified | — |
| github.com/aws/amazon-s3-encryption-client-go/v4Go | v < 4.0.0 | 4.0.0 |
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