CVE-2026-75935

A flaw was found in Amazon ion-java. This uncontrolled memory allocation vulnerability in the binary Ion stream cursor allows remote attackers to cause a denial of service DoS by sending a specially crafted Ion binary document. The crafted document contains a declared-length field that triggers...

CVE-2026-75935: Memory Allocation with Excessive Size Value

Uncontrolled memory allocation in the binary Ion stream cursor in Amazon ion-java before 1.12.0 might allow remote actors to cause a denial of service via a crafted Ion binary document containing a declared-length field that causes excessive heap preallocation. To remediate this issue, users shou...