CVE-2026-75936

Improper handling of highly compressed data in the GZIP auto-decompression handler in Amazon ion-java before 1.12.0 might allow remote actors to cause a denial of service via a crafted compressed Ion document that expands to an arbitrarily large size upon decompression. To remediate this issue, users should upgrade to version 1.12.0 and configure withGzipDecompressionEnabled(false) and/or set an explicit withMaximumBufferSize() when parsing untrusted input.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-083-aws/
https://github.com/amazon-ion/ion-java/releases/tag/v1.12.0
https://github.com/amazon-ion/ion-java/security/advisories/GHSA-wj53-jv76-65mc

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-18 20:17

Updated : 2026-08-20 13:01

NVD link : CVE-2026-75936

Mitre link : CVE-2026-75936

CVE.ORG link : CVE-2026-75936

JSON object : View

Products Affected

No product.

CWE

CWE-409

Improper Handling of Highly Compressed Data (Data Amplification)

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