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CVE-2022-35920

Estado: ModificadaAlta (7.5)—

Sanic is an opensource python web server/framework. Affected versions of sanic allow access to lateral directories when using `app.static` if using encoded `%2F` URLs. Parent directory traversal is not impacted. Users are advised to upgrade. There is no known workaround for this issue.

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).

Tecnologías afectadas (1)

Sanic Project — Sanic

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-35920",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-35920",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-22T15:40:06.042217Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.3,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.7,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "sanic-org",
          "product": "sanic",
          "versions": [
            {
              "status": "affected",
              "version": ">= 22.0.0, < 22.6.1"
            },
            {
              "status": "affected",
              "version": ">= 21.0.0, < 21.12.2"
            },
            {
              "status": "affected",
              "version": "< 20.12.7"
            }
          ]
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      ]
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  ],
  "published": "2022-08-01T22:15:10.347",
  "references": [
    {
      "url": "https://github.com/sanic-org/sanic/issues/2478",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/sanic-org/sanic/pull/2495",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/sanic-org/sanic/security/advisories/GHSA-8cw9-5hmv-77w6",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/sanic-org/sanic/issues/2478",
      "tags": [
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        "Issue Tracking",
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/sanic-org/sanic/pull/2495",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/sanic-org/sanic/security/advisories/GHSA-8cw9-5hmv-77w6",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Sanic is an opensource python web server/framework. Affected versions of sanic allow access to lateral directories when using `app.static` if using encoded `%2F` URLs. Parent directory traversal is not impacted. Users are advised to upgrade. There is no known workaround for this issue."
    },
    {
      "lang": "es",
      "value": "Sanic es un servidor/marco web de código abierto en python. Las versiones afectadas de sanic permiten el acceso a directorios laterales cuando es usado \"app.static\" si son usadas URLs codificadas \"%2F\". El acceso a los directorios principales no está afectado. Es recomendado a usuarios actualizar. No se presentan mitigaciones conocidas para este problema"
    }
  ],
  "lastModified": "2026-06-17T04:52:31.360",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sanic_project:sanic:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DC6FE6CB-23D5-45E1-A733-9F5B5C5FB93A",
              "versionEndExcluding": "20.12.7"
            },
            {
              "criteria": "cpe:2.3:a:sanic_project:sanic:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3771039A-1DBB-45BB-8C01-14A5D00AAABB",
              "versionEndExcluding": "21.12.2",
              "versionStartIncluding": "21.0.0"
            },
            {
              "criteria": "cpe:2.3:a:sanic_project:sanic:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DBE7A183-7780-46EB-B96E-8881D7E47984",
              "versionEndExcluding": "22.6.1",
              "versionStartIncluding": "22.0.0"
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          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}