{"id":"CVE-2026-84851","aliases":["GHSA-9gfg-hgj4-gh44"],"url":"https://o3.security/vulnerability/CVE-2026-84851","summary":"Uncontrolled recursion in the Ion reader in Amazon Ion-C before 1.1.6","details":"An uncontrolled recursion issue exists in Amazon Ion-C versions before 1.1.6 that might allow a remote unauthenticated actor to craft Ion data that exhausts the native call stack and crashes the application using the library, resulting in a denial of service.","published":"2026-09-02T20:19:55.616Z","modified":"2026-09-04T03:47:32.033193577Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://aws.amazon.com/security/security-bulletins/2026-094-aws/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84851.json"},{"type":"ADVISORY","url":"https://github.com/amazon-ion/ion-c/security/advisories/GHSA-9gfg-hgj4-gh44"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84851"},{"type":"FIX","url":"https://github.com/amazon-ion/ion-c/releases/tag/v1.1.6"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-04T03:47:32.033193577Z"}}