---
id: CVE-2025-14764
title: >-
  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 "i…
summary: >-
  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 "i…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-327
published: '2025-12-17'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T23:10:00.237'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-14764'
references:
  - url: 'https://aws.amazon.com/security/security-bulletins/AWS-2025-032/'
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
  - url: 'https://github.com/aws/amazon-s3-encryption-client-go/releases/tag/v4.0.0'
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
  - url: >-
      https://github.com/aws/amazon-s3-encryption-client-go/security/advisories/GHSA-3g75-q268-r9r6
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
tags:
  - nvd
epss: 0.00108
epssPercentile: 0.01079
ingestedAt: '2026-09-30T23:29:32.498Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.