FKIE_CVE-2025-47911

Vulnerability from fkie_nvd - Published: 2026-02-05 18:16 - Updated: 2026-02-18 17:48
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content.
References
security@golang.orghttps://github.com/golang/vulndb/issues/4440Issue Tracking
security@golang.orghttps://go.dev/cl/709876Patch
security@golang.orghttps://groups.google.com/g/golang-announce/c/jnQcOYpiR2cMailing List, Third Party Advisory
security@golang.orghttps://pkg.go.dev/vuln/GO-2026-4440Vendor Advisory
Impacted products
Vendor Product Version
go html *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:go:html:*:*:*:*:*:go:*:*",
              "matchCriteriaId": "376264FC-D0BB-4AAD-B6DE-127D83F3070A",
              "versionEndExcluding": "0.45.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n html.Parse en golang.org/x/net/html tiene una complejidad de an\u00e1lisis cuadr\u00e1tica al procesar ciertas entradas, lo que puede llevar a una denegaci\u00f3n de servicio (DoS) si un atacante proporciona contenido HTML especialmente dise\u00f1ado."
    }
  ],
  "id": "CVE-2025-47911",
  "lastModified": "2026-02-18T17:48:49.760",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-02-05T18:16:09.893",
  "references": [
    {
      "source": "security@golang.org",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://github.com/golang/vulndb/issues/4440"
    },
    {
      "source": "security@golang.org",
      "tags": [
        "Patch"
      ],
      "url": "https://go.dev/cl/709876"
    },
    {
      "source": "security@golang.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://groups.google.com/g/golang-announce/c/jnQcOYpiR2c"
    },
    {
      "source": "security@golang.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://pkg.go.dev/vuln/GO-2026-4440"
    }
  ],
  "sourceIdentifier": "security@golang.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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