{"id":"CVE-2026-4799","title":"In Search Guard FLX up to version 4.0.1, it is possible to use specially crafted requests to redirect the user to an untrusted URL.","summary":"In Search Guard FLX up to version 4.0.1, it is possible to use specially crafted requests to redirect the user to an untrusted URL.","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","cwe":["CWE-601"],"vendor":"search-guard","product":"flx","affected":["flx < 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-2026-4799","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":0.00292,"epssPercentile":0.1946,"ingestedAt":"2026-07-24T20:38:02.137Z","slug":"CVE-2026-4799","body":"## Overview\n\nIn Search Guard FLX up to version 4.0.1, it is possible to use specially crafted requests to redirect the user to an untrusted URL.\n\n## Affected\n\n- `flx < 4.1.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `flx 4.1.0`","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}