CVE-2026-4799 (GCVE-0-2026-4799)

Vulnerability from cvelistv5 – Published: 2026-03-31 14:41 – Updated: 2026-03-31 17:20
VLAI?
Title
Open redirect vulnerability in Search Guard Kibana Plugin via manipulated requests
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 ?
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CWE
  • CWE-601 - URL redirection to untrusted site ('open redirect')
Assigner
References
Impacted products
Vendor Product Version
floragunn Search Guard FLX Affected: 1.0.0 , ≤ 4.0.1 (semver)
Create a notification for this product.
Date Public ?
2026-03-31 10:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-4799",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-31T17:19:54.253854Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-31T17:20:02.797Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Search Guard FLX",
          "vendor": "floragunn",
          "versions": [
            {
              "lessThanOrEqual": "4.0.1",
              "status": "affected",
              "version": "1.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "datePublic": "2026-03-31T10:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "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."
            }
          ],
          "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-601",
              "description": "CWE-601 URL redirection to untrusted site (\u0027open redirect\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-31T14:41:05.646Z",
        "orgId": "9f311a02-c44f-4938-8530-9219246b8255",
        "shortName": "floragunn"
      },
      "references": [
        {
          "url": "https://search-guard.com/cve-advisory/"
        },
        {
          "url": "https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Open redirect vulnerability in Search Guard Kibana Plugin via manipulated requests",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9f311a02-c44f-4938-8530-9219246b8255",
    "assignerShortName": "floragunn",
    "cveId": "CVE-2026-4799",
    "datePublished": "2026-03-31T14:41:05.646Z",
    "dateReserved": "2026-03-25T08:43:23.387Z",
    "dateUpdated": "2026-03-31T17:20:02.797Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-4799\",\"sourceIdentifier\":\"security@search-guard.com\",\"published\":\"2026-03-31T15:16:21.137\",\"lastModified\":\"2026-04-03T15:20:31.917\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@search-guard.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"security@search-guard.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-601\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:search-guard:flx:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.1.0\",\"matchCriteriaId\":\"4C65AC7E-E982-4294-A251-29C6906A2937\"}]}]}],\"references\":[{\"url\":\"https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0\",\"source\":\"security@search-guard.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://search-guard.com/cve-advisory/\",\"source\":\"security@search-guard.com\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-4799\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-31T17:19:54.253854Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-31T17:19:58.969Z\"}}], \"cna\": {\"title\": \"Open redirect vulnerability in Search Guard Kibana Plugin via manipulated requests\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"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\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"floragunn\", \"product\": \"Search Guard FLX\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.0.1\"}], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-03-31T10:00:00.000Z\", \"references\": [{\"url\": \"https://search-guard.com/cve-advisory/\"}, {\"url\": \"https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.1\"}, \"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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"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.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-601\", \"description\": \"CWE-601 URL redirection to untrusted site (\u0027open redirect\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"9f311a02-c44f-4938-8530-9219246b8255\", \"shortName\": \"floragunn\", \"dateUpdated\": \"2026-03-31T14:41:05.646Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-4799\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-03-31T17:20:02.797Z\", \"dateReserved\": \"2026-03-25T08:43:23.387Z\", \"assignerOrgId\": \"9f311a02-c44f-4938-8530-9219246b8255\", \"datePublished\": \"2026-03-31T14:41:05.646Z\", \"assignerShortName\": \"floragunn\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.