PT-2025-51884 · Amazon · Amazon S3 Encryption Client For Java

Antonf-Amzn · CVE-2025-14763 · Published 2025-12-17 · Updated 2026-06-29

Positive Technologies (AI Summary)

CVSS v4.0

6.0

Medium

Base vector

AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Amazon S3 Encryption Client for Java versions prior to 4.0.0

Description A missing cryptographic key commitment in the Amazon S3 Encryption Client for Java could allow a user with write access to an S3 bucket to introduce a new Encryption Data Key (EDK) that decrypts to different plaintext. This is possible when the encrypted data key is stored in an instruction file instead of S3’s metadata record.

Recommendations Upgrade Amazon S3 Encryption Client for Java to version 4.0.0 or later.

Exploit

Fix

Use of a Broken Cryptographic Algorithm

Weakness Enumeration

CWE-327

Related Identifiers

CVE-2025-14763

GHSA-X44P-GVRJ-PJ2R

Affected Products

Amazon S3 Encryption Client For Java

References · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/14xxx/CVE-2025-14763.json · Exploit
• https://github.com/aws/amazon-s3-encryption-client-java/releases/tag/v4.0.0 · Patch
• https://aws.amazon.com/security/security-bulletins/AWS-2025-032 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-14763 · Security Note
• https://osv.dev/vulnerability/ROOT-APP-MAVEN-CVE-2025-14763 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-x44p-gvrj-pj2r · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-14763 · Vendor Advisory
• https://github.com/aws/amazon-s3-encryption-client-java/security/advisories/GHSA-x44p-gvrj-pj2r · Note
• https://github.com/aws/amazon-s3-encryption-client-java · Note
• https://github.com/aws/amazon-s3-encryption-client-java/commit/9d4523edbbc249781b3b3b3f8868fad39c5673d5 · Note
• https://twitter.com/CVEnew/status/2002835963937013984 · Twitter Post