CVE-2026-12043 — Heap double-free in AWS Common Runtime aws-c-http
Improper handling of HPACK dynamic table size updates in the AWS Common Runtime aws-c-http library might allow a remote threat actor operating a server to cause memory corruptio…
Published: 2026-06-12 · CVSS: 8.7 · CVSS 4.0
Improper handling of HPACK dynamic table size updates in the AWS Common Runtime aws-c-http library might allow a remote threat actor operating a server to cause memory corruption on a connecting client application, potentially leading to arbitrary code execution, via a crafted sequence of HTTP/2 HEADERS frames. To remediate this issue, users should upgrade to aws-c-http version 0.11.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7