CVE-2026-89090 — Denial of service in the event stream header decoder in AWS SDK for Go v2
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 consum…
Published: 2026-09-11 · CVSS: 8.2 · CVSS 4.0
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. To remediate this issue, users should upgrade to release-2026-03-23 or later, and patch any forked or derivative code.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7