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CVE-2022-40023

Estado: ModificadaAlta (7.5)—

Sqlalchemy mako before 1.2.2 is vulnerable to Regular expression Denial of Service when using the Lexer class to parse. This also affects babelplugin and linguaplugin.

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 (2)

Debian — Debian LinuxSqlalchemy — Mako

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-40023",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "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:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-09-07T13:15:09.953",
  "references": [
    {
      "url": "https://github.com/sqlalchemy/mako/blob/c2f392e0be52dc67d1b9770ab8cce6a9c736d547/mako/ext/extract.py#L21",
      "tags": [
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    },
    {
      "url": "https://github.com/sqlalchemy/mako/commit/925760291d6efec64fda6e9dd1fd9cfbd5be068c",
      "tags": [
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      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/sqlalchemy/mako/issues/366",
      "tags": [
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    },
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      "tags": [
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      "url": "https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages/",
      "tags": [
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        "Third Party Advisory"
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      "source": "cve@mitre.org"
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      "tags": [
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    },
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      "url": "https://github.com/sqlalchemy/mako/blob/c2f392e0be52dc67d1b9770ab8cce6a9c736d547/mako/ext/extract.py#L21",
      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages/",
      "tags": [
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      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://pyup.io/vulnerabilities/CVE-2022-40023/50870/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1333"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Sqlalchemy mako before 1.2.2 is vulnerable to Regular expression Denial of Service when using the Lexer class to parse. This also affects babelplugin and linguaplugin."
    },
    {
      "lang": "es",
      "value": "Sqlalchemy mako versiones anteriores a 1.2.2, es vulnerable a una Denegación de Servicio de expresiones Regulares cuando es usada la clase Lexer para analizar. Esto también afecta a babelplugin y linguaplugin"
    }
  ],
  "lastModified": "2026-06-17T05:00:47.023",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sqlalchemy:mako:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A85380F0-0A58-4E13-B3E3-3DC01E7ABF3F",
              "versionEndExcluding": "1.2.2"
            }
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          "operator": "OR"
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    },
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      "nodes": [
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  "sourceIdentifier": "cve@mitre.org"
}