CVE-2026-85786

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Amazonion-java0 < 1.12.1affected

Weaknesses

  • CWE-409: CWE-409 Improper handling of highly compressed data (data amplification)

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References