{"id":"CVE-2026-19311","aliases":["EUVD-2026-57420","GHSA-4v32-vrp2-28jp","GHSA-xxpg-q3wh-685q"],"status":"published","title":"Missing Authorization in Execute Monitor API in OpenSearch Alerting Plugin","description":"Missing authorization in the Execute Monitor API in Amazon OpenSearch Alerting plugin might allow an authenticated remote user to read, modify, or delete arbitrary index data via a crafted inline monitor request with unintentional data source and input index parameters.","severity":{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00582,"percentile":0.48243,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-475"],"published":"2026-08-12T18:34:02Z","modified":"2026-10-28T02:30:54Z","products":[{"vendor":"aws","product":"opensearch"},{"vendor":"github","product":"opensearch"},{"vendor":"opensearch","product":"opensearch"}],"references":[{"url":"https://aws.amazon.com/about-aws/whats-new/2026/03/amazon-opensearch-service-version-3-5/","tags":["release-notes","advisory"]},{"url":"https://github.com/opensearch-project/alerting/security/advisories/GHSA-xxpg-q3wh-685q","tags":["release-notes","patch","fix"]},{"url":"https://aws.amazon.com/security/security-bulletins/2026-078-aws/","tags":["vendor-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-19311","tags":["advisory"]},{"url":"https://aws.amazon.com/about-aws/whats-new/2026/03/amazon-opensearch-service-version-3-5"},{"url":"https://aws.amazon.com/security/security-bulletins/2026-078-aws"},{"url":"https://github.com/advisories/GHSA-4v32-vrp2-28jp"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19311.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-19311","title":"Missing 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parameters.","status":"published","published":"2026-08-12T19:17:31.66Z","modified":"2026-08-13T15:19:38.027Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-475"],"updated_at":"2026-11-02T14:12:37.217486Z"}],"osv":[{"id":"CVE-2026-19311","title":"Missing Authorization in Execute Monitor API in OpenSearch Alerting Plugin","description":"Missing authorization in the Execute Monitor API in Amazon OpenSearch Alerting plugin might allow an authenticated remote user to read, modify, or delete arbitrary index data via a crafted inline monitor request with unintentional data source and input index parameters.","status":"published","published":"2026-08-12T18:34:02.669Z","modified":"2026-10-28T02:30:54.571452467Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-475"],"updated_at":"2026-11-02T15:44:58.024074Z"}]}}