Skip to content
AWSAWS-2026-083

Issue with Amazon ion-java - Memory-amplification denial of service

UnratedCVE-2026-75935 · Published Aug 18, 2026 · updated Sep 9, 2026

Bulletin ID: 2026-083-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 08/18/2026 12:30 PM PDT Description: ion-java is a Java library that implements the Amazon Ion data format specification. We identified CVE-2026-75935, memory-amplification denial of service via declared-length preallocation, and CVE-2026-75936, memory-amplification denial of service via highly compressed data expansion. Affected versions: < 1.12.0 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

AWS advisory

Affected versions

The source does not list versions here. See the source advisory for affected products and fixes.
Details and references

More AWS advisories

All AWS

Critical advisories by email

Wednesdays: the week’s critical and high advisories in the AI and data stack, with the fixed versions. Only in weeks that have some.

Double opt-in. Unsubscribe any time.