CVE-2026-52844

{
  "id": "CVE-2026-52844",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-23T18:18:05.137",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, on Windows, Caddy path matchers treat /private\\secret.txt as outside /private/*, but file_server later resolves the same request path as private\\secret.txt on disk. An unauthenticated remote client can bypass Caddy path-scoped auth/deny routes protecting /private/*. This vulnerability is fixed in 2.11.4."
    },
    {
      "lang": "es",
      "value": "Caddy es una plataforma de servidor extensible que usa TLS por defecto. Antes de la versión 2.11.4, en Windows, los emparejadores de rutas de Caddy tratan /private\\secret.txt como fuera de /private/*, pero file_server luego resuelve la misma ruta de solicitud como private\\secret.txt en el disco. Un cliente remoto no autenticado puede eludir las rutas de auth/deny con ámbito de ruta de Caddy que protegen /private/*. Esta vulnerabilidad se corrige en la versión 2.11.4."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "caddyserver",
          "product": "caddy",
          "versions": [
            {
              "version": "< 2.11.4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-23T20:05:58.401415Z",
          "id": "CVE-2026-52844",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    }
  ],
  "configurations": [
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:caddyserver:caddy:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "2.11.4",
              "matchCriteriaId": "6CC2FFA3-3F35-452A-A0B6-C1B66C0C73E6"
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        },
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  ],
  "references": [
    {
      "url": "https://github.com/caddyserver/caddy/security/advisories/GHSA-qrp7-cvwr-j2c6",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory",
        "Exploit"
      ]
    },
    {
      "url": "https://github.com/caddyserver/caddy/security/advisories/GHSA-qrp7-cvwr-j2c6",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Third Party Advisory",
        "Exploit"
      ]
    }
  ]
}