CVE-2026-30246

{
  "id": "CVE-2026-30246",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-05T13:16:28.820",
  "lastModified": "2026-10-26T19:10:00.163",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Fiber is a web framework for Go. In github.com/gofiber/fiber/v3 versions through 3.1.0, the default key generator in the cache middleware uses only the request path and does not include the query string. As a result, requests for the same path with different query parameters can share a cache key and receive the wrong cached response. This can cause response mix-up for query-dependent endpoints and may expose data intended for a different request. This issue is fixed after version 3.1.0."
    },
    {
      "lang": "es",
      "value": "Fiber es un web framework para Go. En las versiones de github.com/gofiber/fiber/v3 hasta la 3.1.0, el generador de claves predeterminado en el middleware de caché utiliza solo la ruta de la solicitud y no incluye la cadena de consulta. Como resultado, las solicitudes para la misma ruta con diferentes parámetros de consulta pueden compartir una clave de caché y recibir la respuesta en caché incorrecta. Esto puede causar una mezcla de respuestas para endpoints dependientes de la consulta y puede exponer datos destinados a una solicitud diferente. Este problema se soluciona después de la versión 3.1.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "gofiber",
          "product": "fiber",
          "versions": [
            {
              "version": ">= v3.0.0-beta.2, < 3.1.0",
              "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:L/I:L/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-05T15:03:58.218760Z",
          "id": "CVE-2026-30246",
          "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-436"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:gofiber:fiber:*:*:*:*:*:go:*:*",
              "versionEndIncluding": "3.1.0",
              "matchCriteriaId": "F4D5D7B6-2F8B-461E-B59A-BAD18731F429"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/gofiber/fiber/blob/main/middleware/cache/cache_test.go#L599-L621",
      "source": "[email protected]",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://github.com/gofiber/fiber/blob/main/middleware/cache/config.go#L90-L92",
      "source": "[email protected]",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://github.com/gofiber/fiber/security/advisories/GHSA-35hp-hqmv-8qg8",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/gofiber/fiber/security/advisories/GHSA-35hp-hqmv-8qg8",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    }
  ]
}