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CVE-2026-4799

Estado: AnalizadaMedia (4.3)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Search-guard — FLX

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-4799",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-4799",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-31T17:19:54.253854Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@search-guard.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@search-guard.com",
      "affectedData": [
        {
          "vendor": "floragunn",
          "product": "Search Guard FLX",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "4.0.1"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-03-31T15:16:21.137",
  "references": [
    {
      "url": "https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0",
      "tags": [
        "Release Notes"
      ],
      "source": "security@search-guard.com"
    },
    {
      "url": "https://search-guard.com/cve-advisory/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@search-guard.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@search-guard.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "En Search Guard FLX hasta la versión 4.0.1, es posible utilizar solicitudes especialmente diseñadas para redirigir al usuario a una URL no confiable."
    }
  ],
  "lastModified": "2026-07-24T20:10:00.147",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:search-guard:flx:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4C65AC7E-E982-4294-A251-29C6906A2937",
              "versionEndExcluding": "4.1.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@search-guard.com"
}