Vulnerability-Lookup

GHSA-8VM2-C32J-MVFR

Vulnerability from github – Published: 2026-06-22 09:30 – Updated: 2026-06-22 12:32

Details

Apache NiFi 0.0.1 through 2.9.0 support building qualified URLs from one of several HTTP request headers that provide an alternative to the standard Host header without validating the values provided. Apache NiFi 1.6.0 introduced a configurable application property to restrict values provided in the HTTP Host header, but did not apply the validation to alternative Proxy and Forwarded headers. The absence of proxy host header validation allowed a client to instruct Apache NiFi web services to construct invalid qualified URLs for redirection or data references. Upgrading to Apache NiFi 2.10.0 is the recommended mitigation, which implements validation for the X-ProxyHost and X-Forwarded-Host HTTP request headers based on the nifi.web.proxy.host property. Enabling header validation requires configuring the application with HTTPS. Reverse proxy servers in front of Apache NiFi are responsible for filtering input request headers and providing allowed values to the application.

Severity

6.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/S:N/AU:Y/R:A/V:D/RE:L/U:Green

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-54665"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-346"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-22T08:17:07Z",
    "severity": "MODERATE"
  },
  "details": "Apache NiFi 0.0.1 through 2.9.0 support building qualified URLs from one of several HTTP request headers that provide an alternative to the standard Host header without validating the values provided. Apache NiFi 1.6.0 introduced a configurable application property to restrict values provided in the HTTP Host header, but did not apply the validation to alternative Proxy and Forwarded headers. The absence of proxy host header validation allowed a client to instruct Apache NiFi web services to construct invalid qualified URLs for redirection or data references. Upgrading to Apache NiFi 2.10.0 is the recommended mitigation, which implements validation for the X-ProxyHost and X-Forwarded-Host HTTP request headers based on the nifi.web.proxy.host property. Enabling header validation requires configuring the application with HTTPS. Reverse proxy servers in front of Apache NiFi are responsible for filtering input request headers and providing allowed values to the application.",
  "id": "GHSA-8vm2-c32j-mvfr",
  "modified": "2026-06-22T12:32:02Z",
  "published": "2026-06-22T09:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54665"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/y0yoblon8f6dp00qz5r90cxq5n6g4j6k"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/20/7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:A/V:D/RE:L/U:Green",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-54665 (GCVE-0-2026-54665)

Vulnerability from cvelistv5 – Published: 2026-06-22 07:34 – Updated: 2026-06-22 16:09

Title

Apache NiFi: Missing Validation for Proxy Host Headers

Summary

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/S:N/AU:Y/R:A/V:D/RE:L/U:Green

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-346 - Origin Validation Error

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/y0yoblon8f6dp00qz…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/06/20/7

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache NiFi	Affected: 0.0.1 , < 2.10.0 (semver)

Credits

Jose Rivas

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2026-06-22T08:02:18.320Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/06/20/7"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2026-54665",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-22T16:09:44.185547Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-22T16:09:50.834Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.nifi:nifi-jetty",
          "product": "Apache NiFi",
          "vendor": "Apache Software Foundation",
          "versions": [
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              "status": "affected",
              "version": "0.0.1",
              "versionType": "semver"
            }
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        }
      ],
      "credits": [
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          "type": "finder",
          "value": "Jose Rivas"
        }
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      "descriptions": [
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            }
          ],
          "value": "Apache NiFi 0.0.1 through 2.9.0 support building qualified URLs from one of several HTTP request headers that provide an alternative to the standard Host header without validating the values provided. Apache NiFi 1.6.0 introduced a configurable application property to restrict values provided in the HTTP Host header, but did not apply the validation to alternative Proxy and Forwarded headers. The absence of proxy host header validation allowed a client to instruct Apache NiFi web services to construct invalid qualified URLs for redirection or data references. Upgrading to Apache NiFi 2.10.0 is the recommended mitigation, which implements validation for the X-ProxyHost and X-Forwarded-Host HTTP request headers based on the nifi.web.proxy.host property. Enabling header validation requires configuring the application with HTTPS. Reverse proxy servers in front of Apache NiFi are responsible for filtering input request headers and providing allowed values to the application."
        }
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      "metrics": [
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            "Recovery": "AUTOMATIC",
            "Safety": "NEGLIGIBLE",
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            "vulnerabilityResponseEffort": "LOW"
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          "scenarios": [
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        "discovery": "EXTERNAL"
      },
      "timeline": [
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          "lang": "en",
          "time": "2026-05-18T09:00:00.000Z",
          "value": "reported"
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      "title": "Apache NiFi: Missing Validation for Proxy Host Headers",
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  "cveMetadata": {
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    "datePublished": "2026-06-22T07:34:13.850Z",
    "dateReserved": "2026-06-15T20:22:59.629Z",
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  },
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}

Sightings

Author	Source	Type	Date	Other

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.

Action not permitted

GHSA-8VM2-C32J-MVFR

CVE-2026-54665 (GCVE-0-2026-54665)

Tags

Sightings

Nomenclature