High severity7.5NVD Advisory· Published Sep 4, 2026

CVE-2026-85786

Description

Improper handling of highly compressed data in Amazon ion-java before 1.12.1 might allow remote attackers to cause a denial of service via a crafted compressed Ion document that expands to an arbitrarily large size upon decompression due to insufficient coverage of the GZIP auto-decompression opt-out introduced for CVE-2026-75936.

To remediate this issue, users should upgrade to version 1.12.1.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Amazon/ion-javallm-fuzzy
Range: <1.12.1

Patches

Vulnerability mechanics

References

aws.amazon.com/security/security-bulletins/2026-100-aws/nvd
github.com/amazon-ion/ion-java/releases/tag/v1.12.1nvd

News mentions

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