{"id":"CVE-2026-4818","title":"In Search Guard FLX versions from 3.0.0 up to 4.0.1, there exists an issue which allows users without the necessary privileges to execute some management operations against data streams.","summary":"In Search Guard FLX versions from 3.0.0 up to 4.0.1, there exists an issue which allows users without the necessary privileges to execute some management operations against data streams.","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-285","CWE-862"],"vendor":"search-guard","product":"flx","affected":["flx >= 3.0.0, < 4.1.0"],"patched":["flx 4.1.0"],"published":"2026-03-31","updated":"2026-07-24","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-4818","references":[{"url":"https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0","label":"security@search-guard.com"},{"url":"https://search-guard.com/cve-advisory/","label":"security@search-guard.com"}],"tags":["nvd"],"epss":0.00189,"epssPercentile":0.08747,"ingestedAt":"2026-07-24T20:38:02.619Z","slug":"CVE-2026-4818","body":"## Overview\n\nIn Search Guard FLX versions from 3.0.0 up to 4.0.1, there exists an issue which allows users without the necessary privileges to execute some management operations against data streams.\n\n## Affected\n\n- `flx >= 3.0.0, < 4.1.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `flx 4.1.0`","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":37.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}