CVE-2026-75935
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Aug 18, 2026
Vendor
unknown
Description
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 should upgrade to version 1.12.0.