CVE-2025-14764

State: Published
Severity: 6.0 Medium
Published: Dec 17, 2025
Updated: Dec 17, 2025
Reserved: Dec 16, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	6.0 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N	AMZN
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N	AMZN

Weaknesses

CWE-327 Use of a Broken or Risky Cryptographic Algorithm

Affected Products

Product	Versions
S3 Encryption Client for GoAWS	4.0Not affected

References

https://aws.amazon.com/security/security-bulletins/AWS-2025-032/vendor-advisory
https://github.com/aws/amazon-s3-encryption-client-go/security/advisories/GHSA-3g75-q268-r9r6third-party-advisory
https://github.com/aws/amazon-s3-encryption-client-go/releases/tag/v4.0.0patch

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