CVE-2026-6550 - Key commitment policy bypass via shared key cache in AWS Encryption SDK for Python

Encryption Sdk ยท 2026-06-05

Actions

Rate this issue

Technical Details

Affected Versions 2.0 to 2.5.1, 3.0 to 3.3.0, 4.0 to 4.0.4
Regions all
CVE IDs CVE-2026-6550
Migration Required Yes
Cost Impact Neutral
IaC Impact High

What This Means

For DevOps Teams

Update AWS Encryption SDK for Python to versions 3.3.1 or 4.0.5 to address the key commitment policy bypass vulnerability (CVE-2026-6550) and ensure secure encryption practices.

For Platform Teams

Deploy the updated AWS Encryption SDK for Python to maintain secure encryption standards and prevent potential data integrity issues caused by the key commitment policy bypass.

For Executives

Implement the latest AWS Encryption SDK for Python to mitigate the risk of key commitment policy bypass and ensure data integrity and security.

Source

View original AWS announcement โ†’

Related Encryption Sdk Updates

Weekly AWS Digest in Your Inbox

No spam, no headlines. Just a weekly summary of the 3โ€“7 AWS changes that matter for DevOps and Platform teams.

๐Ÿ“ง Exactly 1 email per week โ€ข Every Tuesday โ€ข Unsubscribe anytime

Today: AWS only. Coming next: Azure and other major clouds.