{"id":"CVE-2026-85786","aliases":[],"url":"https://o3.security/vulnerability/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…","details":"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.\n\n\n\nTo remediate this issue, users should upgrade to version 1.12.1.","published":"2026-09-04T20:17:33.153","modified":"2026-09-04T20:17:33.153","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://aws.amazon.com/security/security-bulletins/2026-100-aws/"},{"type":"WEB","url":"https://github.com/amazon-ion/ion-java/releases/tag/v1.12.1"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-04T20:17:33.153"}}