{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.4"
              },
              {
                "fixed": "2.19.6"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "38ffdc9bd80254a08ac67abf75141385867baf3e"
            },
            {
              "fixed": "95e41671b51af2f068a16d280075d7f1f0b8e0ff"
            }
          ],
          "repo": "https://github.com/opensearch-project/dashboards-observability",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-rmqx-r3wm-3px5"
  ],
  "database_specific": {
    "cna_assigner": "AMZN",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77811.json"
  },
  "details": "Improper input validation in the dashboards-observability plugin in OpenSearch Dashboards allows a remote authenticated user with write permissions to OpenSearch Dashboards saved objects to execute arbitrary JavaScript in the context of other users' browser sessions by uploading a saved asset with arbitrary web content.",
  "id": "CVE-2026-77811",
  "modified": "2026-08-29T03:30:52.632231008Z",
  "published": "2026-08-21T20:09:19.151Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://aws.amazon.com/security/security-bulletins/2026-088-aws/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77811.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/opensearch-project/dashboards-observability/security/advisories/GHSA-rmqx-r3wm-3px5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77811"
    },
    {
      "type": "FIX",
      "url": "https://opensearch.org/artifacts/by-version/#release-2-19-6"
    },
    {
      "type": "FIX",
      "url": "https://opensearch.org/artifacts/by-version/#release-3-4-0"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Stored Cross-Site Scripting via Integration Template Asset in OpenSearch Dashboards"
}