{"id":"CVE-2026-18952","summary":"Missing Input Validation in Threat Intel Feed Parser in OpenSearch Security Analytics Plugin","details":"Missing input validation in the threat intelligence feed parser in the OpenSearch Security Analytics plugin might allow an authenticated remote user to perform server-side request forgery and read local files via a crafted URL parameter to the threat intel source configuration endpoint.","aliases":["GHSA-w946-8jxc-6v3m"],"modified":"2026-08-23T03:42:34.763995939Z","published":"2026-08-12T18:42:38.633Z","database_specific":{"cna_assigner":"AMZN","cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18952.json"},"references":[{"type":"ADVISORY","url":"https://aws.amazon.com/security/security-bulletins/2026-079-aws/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18952.json"},{"type":"ADVISORY","url":"https://github.com/opensearch-project/security-analytics/security/advisories/GHSA-w946-8jxc-6v3m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18952"},{"type":"FIX","url":"https://docs.aws.amazon.com/opensearch-service/latest/developerguide/service-software.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/opensearch-project/security-analytics","events":[{"introduced":"c0de31a0e99bfc3ab8201706e4d8d74db8a0f4e6"},{"fixed":"1435464d84e284d514817616c3b957228f1c5518"},{"fixed":"c60816f3eab8d2ba1e505e232cbe53da85634867"}],"database_specific":{"extracted_events":[{"introduced":"2.15.0"},{"fixed":"3.5.0"},{"fixed":"3.7.0"}],"source":"AFFECTED_FIELD"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18952.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}