{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2026-03-23"
              },
              {
                "introduced": "v2"
              },
              {
                "fixed": "release-2026-03-23"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "ef3322b8de760eec7510b2e3966077f54584d010"
            }
          ],
          "repo": "https://github.com/aws/aws-sdk-go-v2",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-xmrv-pmrh-hhx2"
  ],
  "database_specific": {
    "cna_assigner": "AMZN",
    "cwe_ids": [
      "CWE-248"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89090.json"
  },
  "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.",
  "id": "CVE-2026-89090",
  "modified": "2026-09-13T03:30:49.268650047Z",
  "published": "2026-09-11T17:03:33.351Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://aws.amazon.com/security/security-bulletins/2026-110-aws/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89090.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/aws/aws-sdk-go-v2/security/advisories/GHSA-xmrv-pmrh-hhx2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89090"
    },
    {
      "type": "FIX",
      "url": "https://github.com/aws/aws-sdk-go-v2/releases/tag/release-2026-03-23"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Denial of service in the event stream header decoder in AWS SDK for Go v2"
}