CVE-2026-50139

{
  "id": "CVE-2026-50139",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-18T15:16:54.733",
  "lastModified": "2026-10-22T22:10:00.250",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "goshs is a SimpleHTTPServer written in Go. Prior to version 2.1.0, `ShareHandler` reads the share token's `DownloadLimit` under `RLock`, releases the lock, serves the file, then re-acquires the lock to increment the counter. Concurrent requests all read the same `Downloaded`/`DownloadLimit` snapshot, all pass the check, and all are served — exceeding the operator's intended cap. Version 2.1.0 patches the issue."
    },
    {
      "lang": "es",
      "value": "goshs es un SimpleHTTPServer escrito en Go. Antes de la versión 2.1.0, ’ShareHandler’ lee el ’DownloadLimit’ del token de compartición bajo ’RLock’, libera el bloqueo, sirve el archivo y luego vuelve a adquirir el bloqueo para incrementar el contador. Las solicitudes concurrentes leen la misma instantánea de ’Downloaded’/’DownloadLimit’, todas pasan la verificación y todas son servidas - excediendo el límite previsto por el operador. La versión 2.1.0 corrige el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "patrickhener",
          "product": "goshs",
          "versions": [
            {
              "version": "< 2.1.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-19T14:33:06.319046Z",
          "id": "CVE-2026-50139",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/goshs-labs/goshs/security/advisories/GHSA-j48m-h7xq-2xpj",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/goshs-labs/goshs/security/advisories/GHSA-j48m-h7xq-2xpj",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}