PT-2026-77296 · Amazon · Ion-Java

CVE-2026-75935

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Published

2026-08-18

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Updated

2026-08-18

CVSS v4.0

8.7

High

VectorAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Amazon ion-java versions prior to 1.12.0
Description Uncontrolled memory allocation in the binary Ion stream cursor allows remote actors to cause a denial of service. This occurs when a crafted Ion binary document contains a declared-length field that triggers excessive heap preallocation, leading to memory amplification.
Recommendations Upgrade to version 1.12.0.

Exploit

Fix

DoS

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Weakness Enumeration

Related Identifiers

CVE-2026-75935
GHSA-822F-6GG9-WHR5

Affected Products

Ion-Java