CVE-2026-85786Incomplete fix for CVE-2026-75936 memory-amplification denial of service in Amazon ion-java
Updated under an hour ago ()
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It affects Amazon ion-java. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-409
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- AMZN
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Amazon ion-java amazon:ion_java (from the name) | before 1.12.1 | CNA record |
References
- https://github.com/amazon-ion/ion-java/releases/tag/v1.12.1patch, release-notes
- https://aws.amazon.com/security/security-bulletins/2026-100-aws/vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.