FKIE_CVE-2026-3234

Vulnerability from fkie_nvd - Published: 2026-03-12 11:15 - Updated: 2026-03-12 21:07
Severity ?
4.3 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Summary
A flaw was found in mod_proxy_cluster. This vulnerability, a Carriage Return Line Feed (CRLF) injection in the decodeenc() function, allows a remote attacker to bypass input validation. By injecting CRLF sequences into the cluster configuration, an attacker can corrupt the response body of INFO endpoint responses. Exploitation requires network access to the MCMP protocol port, but no authentication is needed.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2026-3234
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2442889
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in  mod_proxy_cluster. This vulnerability, a Carriage Return Line Feed (CRLF) injection in the decodeenc() function, allows a remote attacker to bypass input validation. By injecting CRLF sequences into the cluster configuration, an attacker can corrupt the response body of INFO endpoint responses. Exploitation requires network access to the MCMP protocol port, but no authentication is needed."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un fallo en mod_proxy_cluster. Esta vulnerabilidad, una inyecci\u00f3n de Retorno de Carro y Salto de L\u00ednea (CRLF) en la funci\u00f3n decodeenc(), permite a un atacante remoto eludir la validaci\u00f3n de entrada. Al inyectar secuencias CRLF en la configuraci\u00f3n del cl\u00faster, un atacante puede corromper el cuerpo de la respuesta de las respuestas del endpoint INFO. La explotaci\u00f3n requiere acceso de red al puerto del protocolo MCMP, pero no se necesita autenticaci\u00f3n."
    }
  ],
  "id": "CVE-2026-3234",
  "lastModified": "2026-03-12T21:07:53.427",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "secalert@redhat.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-03-12T11:15:57.147",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2026-3234"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442889"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-93"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Primary"
    }
  ]
}


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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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