FKIE_CVE-2026-42194

Vulnerability from fkie_nvd - Published: 2026-05-07 04:16 - Updated: 2026-05-07 16:16
Severity ?
6.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Summary
Admidio is an open-source user management solution. Prior to version 5.0.9, the incomplete SSRF fix in Admidio's fetch_metadata.php validates the resolved IP address but passes the original hostname-based URL to curl_init(), leaving a DNS rebinding TOCTOU window that allows redirecting requests to internal IPs. This issue has been patched in version 5.0.9.
References
security-advisories@github.comhttps://github.com/Admidio/admidio/releases/tag/v5.0.9
security-advisories@github.comhttps://github.com/Admidio/admidio/security/advisories/GHSA-hcjj-chvw-fmw9
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/Admidio/admidio/security/advisories/GHSA-hcjj-chvw-fmw9
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Admidio is an open-source user management solution. Prior to version 5.0.9, the incomplete SSRF fix in Admidio\u0027s fetch_metadata.php validates the resolved IP address but passes the original hostname-based URL to curl_init(), leaving a DNS rebinding TOCTOU window that allows redirecting requests to internal IPs. This issue has been patched in version 5.0.9."
    }
  ],
  "id": "CVE-2026-42194",
  "lastModified": "2026-05-07T16:16:20.777",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 4.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-05-07T04:16:34.053",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/Admidio/admidio/releases/tag/v5.0.9"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/Admidio/admidio/security/advisories/GHSA-hcjj-chvw-fmw9"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/Admidio/admidio/security/advisories/GHSA-hcjj-chvw-fmw9"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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