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CVE-2025-14759GHSA-4V42-65R3-3GJX

Missing cryptographic key commitment in the Amazon S3 Encryption Client for .NET may allow a user with write access to the S3 bucket to intr

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 3.2.0
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

Missing cryptographic key commitment in the Amazon S3 Encryption Client for .NET 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 .NET to version 3.2.0 or later.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • AWS S3 Encryption Client for .NET

    Version range not reported

  • Amazon.Extensions.S3.EncryptionNuGet

    fixed in 3.2.0

References 3

aws.amazon.com

GitHub · aws/amazon-s3-encryption-client-dotnet