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CVE-2026-56860

Estado: Pendiente de análisisMedia (5.9)—

Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-56860",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-56860",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-14T16:14:34.601382Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "security@golang.org",
      "affectedData": [
        {
          "vendor": "Go standard library",
          "product": "net/url",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.25.13",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "1.26.0-0",
              "lessThan": "1.26.6",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "1.27.0-0",
              "lessThan": "1.27.0-rc.3",
              "versionType": "semver"
            }
          ],
          "packageName": "net/url",
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "resolvePath"
            },
            {
              "name": "URL.Parse"
            },
            {
              "name": "URL.ResolveReference"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-08-13T22:17:22.440",
  "references": [
    {
      "url": "https://go.dev/cl/803681",
      "source": "security@golang.org"
    },
    {
      "url": "https://go.dev/issue/80494",
      "source": "security@golang.org"
    },
    {
      "url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI",
      "source": "security@golang.org"
    },
    {
      "url": "https://pkg.go.dev/vuln/GO-2026-6218",
      "source": "security@golang.org"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-407"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations."
    }
  ],
  "lastModified": "2026-09-03T16:37:52.170",
  "sourceIdentifier": "security@golang.org"
}