CVE-2026-12043 - Heap double-free in AWS Common Runtime aws-c-http

Common Runtime ยท 2026-10-19

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Technical Details

Affected Versions aws-c-http >= 0.4.22 AND <= 0.10.15, aws-sdk-cpp >= 1.11.41, <= 1.11.814, aws-sdk-java-v2 >= 2.44.27, <= 2.44.14
Regions all
CVE IDs CVE-2026-12043
Migration Required Yes
Cost Impact Neutral
IaC Impact High

What This Means

For DevOps Teams

Update the aws-c-http library to version 0.11.0 and ensure all dependent SDKs (aws-sdk-cpp and aws-sdk-java-v2) are upgraded to compatible versions to address the heap double-free vulnerability (CVE-2026-12043).

For Platform Teams

Integrate the updated aws-c-http library (version 0.11.0) into the platform to enhance security and prevent potential memory corruption issues in client applications.

For Executives

Implement the security patch for aws-c-http to mitigate the risk of memory corruption and arbitrary code execution, ensuring the integrity and security of client applications connecting to AWS services.

Source

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