{"id":"CVE-2026-75935","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-75935","summary":"Uncontrolled memory allocation in the binary Ion stream cursor in Amazon ion-java before 1.12.0 might allow remote actors to cause a denial of service via a crafted Ion binary document…","details":"Uncontrolled memory allocation in the binary Ion stream cursor in Amazon ion-java before 1.12.0 might allow remote actors to cause a denial of service via a crafted Ion binary document containing a declared-length field that causes excessive heap preallocation.\n\n\n\nTo remediate this issue, users should upgrade to version 1.12.0.","published":"2026-08-18T20:17:34.130","modified":"2026-08-18T20:17:34.130","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://github.com/amazon-ion/ion-java/releases/tag/v1.12.0"},{"type":"WEB","url":"https://github.com/amazon-ion/ion-java/security/advisories/GHSA-822f-6gg9-whr5"},{"type":"WEB","url":"https://staging.prod.website.marketing.aws.dev/security/security-bulletins/2026-083-aws/"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T20:17:34.130"}}