CVE-2026-85786
Incomplete fix for CVE-2026-75936 memory-amplification denial of service in Amazon ion-java
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-409 |
| Vendor | amazon |
| Product | ion-java |
| Published | Sep 4, 2026 |
| Last Updated | Sep 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Amazon / ion-java
0 < 1.12.1