CVE-2026-19642 & CVE-2026-19643 - Memory-safety issues in the Base64 decoder in the AWS SDK for C++

Sdk For ยท 2026-10-21

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Technical Details

Affected Versions <= 1.11.861
Regions all
CVE IDs CVE-2026-19642, CVE-2026-19643
Migration Required Yes
Cost Impact Neutral
IaC Impact High

What This Means

For DevOps Teams

Update the AWS SDK for C++ to version 1.11.862 to address critical memory-safety issues in the Base64 decoder, ensuring that applications are secure and stable.

For Platform Teams

Adopt the updated AWS SDK for C++ version 1.11.862 to integrate the new Base64 implementation from the AWS Common Runtime, enhancing security and stability of the platform.

For Executives

Implement the upgrade to AWS SDK for C++ version 1.11.862 to mitigate security risks associated with CVE-2026-19642 and CVE-2026-19643, ensuring application stability and reducing the risk of crashes or memory corruption.

Source

View original AWS announcement โ†’

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