{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-12043/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-12T18:49:54.683Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-12043","@id":"https://www.cve.org/CVERecord?id=CVE-2026-12043","description":"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.\n\n\n\nTo remediate this issue, users should upgrade to aws-c-http version 0.11.0."},"products":[{"@id":"cpe:2.3:a:aws:aws-c-http:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:aws:aws-c-http:*:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"No fixed version is published yet; monitor the upstream advisory.","timestamp":"2026-06-12T18:49:54.683Z"}]}