{"id":"CVE-2026-18952","title":"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 …","summary":"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 …","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-918"],"published":"2026-08-12","updated":"2026-08-21","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-18952","references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-079-aws/","label":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://docs.aws.amazon.com/opensearch-service/latest/developerguide/service-software.html","label":"ff89ba41-3aa1-4d27-914a-91399e9639e5"},{"url":"https://github.com/opensearch-project/security-analytics/security/advisories/GHSA-w946-8jxc-6v3m","label":"ff89ba41-3aa1-4d27-914a-91399e9639e5"}],"tags":["nvd"],"epss":0.00378,"epssPercentile":0.31556,"ingestedAt":"2026-08-22T13:32:36.049Z","slug":"CVE-2026-18952","body":"## Overview\n\nMissing 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}