{"id":"CVE-2026-89090","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-89090","summary":"An unrecovered panic in the event stream header decoder in Amazon AWS SDK for Go v2 before release-2026-03-23 might allow an unauthenticated remote actor to terminate the consuming…","details":"An unrecovered panic in the event stream header decoder in Amazon AWS SDK for Go v2 before release-2026-03-23 might allow an unauthenticated remote actor to terminate the consuming application process via a crafted event stream response frame containing a header value type outside the valid range.\n\n\n\nTo remediate this issue, users should upgrade to release-2026-03-23 or later, and patch any forked or derivative code.","published":"2026-09-11T18:17:00.097","modified":"2026-09-11T18:17:00.097","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/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/2026-110-aws/"},{"type":"WEB","url":"https://github.com/aws/aws-sdk-go-v2/releases/tag/release-2026-03-23"},{"type":"WEB","url":"https://github.com/aws/aws-sdk-go-v2/security/advisories/GHSA-xmrv-pmrh-hhx2"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-11T18:17:00.097"}}