CVE-2026-73210

{
  "id": "CVE-2026-73210",
  "sourceIdentifier": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
  "published": "2026-08-11T14:17:16.070",
  "lastModified": "2026-10-24T15:10:00.190",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Server-Side Request Forgery (SSRF) vulnerability existed in Lookyloo's PlaywrightCapture when the only_global_lookup option was enabled.\n\nPlaywrightCapture implements this option to prevent captures from accessing local, loopback, or otherwise non-public network resources. However, favicon retrieval was performed separately from the browser request-routing protections. Favicon URLs extracted from rendered HTML were resolved and subsequently fetched directly using an aiohttp.ClientSession.\n\nAn attacker able to supply or control a web page processed by PlaywrightCapture could include a crafted favicon reference, for example pointing to a loopback address, private IP address, or another resource reachable only from the PlaywrightCapture host. When the page was processed, the favicon retrieval routine could issue an HTTP request to this destination despite only_global_lookup being enabled.\n\nThis bypass could therefore be used to make the PlaywrightCapture host interact with internal network services that should not be reachable through a capture. Depending on the targeted service and its response, this could enable internal service discovery, access to internal resources, or interaction with HTTP endpoints available only from the capture infrastructure.\n\nThe patch introduces a common URL validation routine and applies it to favicon retrieval. Direct non-global IP addresses, localhost, .local domains, malformed URLs, and other explicitly non-public destinations are rejected before the favicon request is performed.\n\nThis fix is a complementary fix to CVE-2026-44439 - GCVE-0-2026-44439 - GHSA-687H-XW6F-Q2QW"
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de falsificación de petición del lado del servidor (SSRF) existía en PlaywrightCapture de Lookyloo cuando la opción only_global_lookup estaba habilitada.\n\nPlaywrightCapture implementa esta opción para evitar que las capturas accedan a recursos de red locales, de bucle invertido o de otro modo no públicos. Sin embargo, la recuperación de favicons se realizaba por separado de las protecciones de enrutamiento de peticiones del navegador. Las URL de favicon extraídas del HTML renderizado se resolvían y posteriormente se obtenían directamente usando un aiohttp.ClientSession.\n\nUn atacante capaz de proporcionar o controlar una página web procesada por PlaywrightCapture podría incluir una referencia de favicon manipulada, por ejemplo, apuntando a una dirección de bucle invertido, dirección IP privada o a otro recurso accesible solo desde el host de PlaywrightCapture. Cuando la página era procesada, la rutina de recuperación de favicons podía emitir una petición HTTP a este destino a pesar de que only_global_lookup estuviera habilitado.\n\nEste bypass podría, por lo tanto, ser utilizado para hacer que el host de PlaywrightCapture interactúe con servicios de red internos que no deberían ser accesibles a través de una captura. Dependiendo del servicio objetivo y su respuesta, esto podría permitir el descubrimiento de servicios internos, el acceso a recursos internos o la interacción con puntos finales HTTP disponibles solo desde la infraestructura de captura.\n\nEl parche introduce una rutina común de validación de URL y la aplica a la recuperación de favicons. Direcciones IP no globales directas, localhost, dominios .local, URL malformadas y otros destinos explícitamente no públicos son rechazados antes de que se realice la petición de favicon.\n\nEsta corrección es una corrección complementaria a CVE-2026-44439 - GCVE-0-2026-44439 - GHSA-687H-XW6F-Q2QW"
    }
  ],
  "affected": [
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "affectedData": [
        {
          "vendor": "Lookyloo",
          "product": "PlaywrightCapture",
          "defaultStatus": "unaffected",
          "repo": "https://github.com/Lookyloo/PlaywrightCapture/",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.40.6",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/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:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 5.1,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "ACTIVE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-12T18:36:14.056593Z",
          "id": "CVE-2026-73210",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/Lookyloo/PlaywrightCapture/commit/5e6679717e97f7a18bb71d00a16b0876997fa10d",
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8"
    }
  ]
}