{"id":"CVE-2026-75936","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-75936","summary":"Improper handling of highly compressed data in the GZIP auto-decompression handler in Amazon ion-java before 1.12.0 might allow remote actors to cause a denial of service via a crafted…","details":"Improper handling of highly compressed data in the GZIP auto-decompression handler in Amazon ion-java before 1.12.0 might allow remote actors to cause a denial of service via a crafted compressed Ion document that expands to an arbitrarily large size upon decompression.\n\n\n\nTo remediate this issue, users should upgrade to version 1.12.0 and configure withGzipDecompressionEnabled(false) and/or set an explicit withMaximumBufferSize() when parsing untrusted input.","published":"2026-08-18T20:17:34.317","modified":"2026-08-18T20:17:34.317","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/2026-083-aws/"},{"type":"WEB","url":"https://github.com/amazon-ion/ion-java/releases/tag/v1.12.0"},{"type":"WEB","url":"https://github.com/amazon-ion/ion-java/security/advisories/GHSA-wj53-jv76-65mc"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T20:17:34.317"}}