Vulnerability in Aws S3 Encryption Client For Go
CVE-2025-14764
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.
Vulnerability class: POODLE (CVE-2014-3566)
EPSS: 0.001 (0.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Aws S3 Encryption Client For Go — versions 4.0
Weakness classification (CWE)
References
- ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)
- ff89ba41-3aa1-4d27-914a-91399e9639e5 (third-party-advisory)
- ff89ba41-3aa1-4d27-914a-91399e9639e5 (patch)
Frequently asked questions
- What is CVE-2025-14764?
- CVE-2025-14764 is a medium-severity vulnerability in Aws S3 Encryption Client For Go, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 5.3/10. Published 2025-12-17.
- How severe is CVE-2025-14764?
- Medium severity. CVSS v3 base score is 5.3 out of 10.