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

Encryption Sdk ยท 2026-08-20

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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 operations.

For Platform Teams

Deploy the patched versions of AWS Encryption SDK for Python (3.3.1 or 4.0.5) to maintain secure encryption practices and protect against potential key commitment policy bypass attacks.

For Executives

Implement the latest AWS Encryption SDK for Python to mitigate the risk of key commitment policy bypass and ensure secure encryption practices within your organization.

Source

View original AWS announcement โ†’

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