SB2025121803 - Spoofing attack in AWS SDK for PHP
Published: December 18, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Spoofing attack (CVE-ID: CVE-2025-14761)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to a single ciphertext can be decrypted into 2 different plaintexts by using different encryption keys. A remote user with permission to upload a new instruction file to the S3 bucket to replace the existing instruction file can create a rouge EDK key and force the application to use it in any future attempts to decrypt the underlying encrypted message with the S3EC.
Remediation
Install update from vendor's website.