github - ghsa-7rxf-gvfg-47g4

ghsa-7rxf-gvfg-47g4

Vulnerability from github

Published

2025-03-20 12:32

Modified

2025-03-22 00:06

Severity ?

4.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Summary

Flask-CORS improper regex path matching vulnerability

Details

corydolphin/flask-cors version 4.0.1 contains an improper regex path matching vulnerability. The plugin prioritizes longer regex patterns over more specific ones when matching paths, which can lead to less restrictive CORS policies being applied to sensitive endpoints. This mismatch in regex pattern priority allows unauthorized cross-origin access to sensitive data or functionality, potentially exposing confidential information and increasing the risk of unauthorized actions by malicious actors.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "flask-cors"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "4.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-6839"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-41"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-22T00:06:34Z",
    "nvd_published_at": "2025-03-20T10:15:33Z",
    "severity": "MODERATE"
  },
  "details": "corydolphin/flask-cors version 4.0.1 contains an improper regex path matching vulnerability. The plugin prioritizes longer regex patterns over more specific ones when matching paths, which can lead to less restrictive CORS policies being applied to sensitive endpoints. This mismatch in regex pattern priority allows unauthorized cross-origin access to sensitive data or functionality, potentially exposing confidential information and increasing the risk of unauthorized actions by malicious actors.",
  "id": "GHSA-7rxf-gvfg-47g4",
  "modified": "2025-03-22T00:06:34Z",
  "published": "2025-03-20T12:32:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-6839"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/corydolphin/flask-cors"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/403eb1fc-86f4-4820-8eba-0f3dfae9f2b4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Flask-CORS improper regex path matching vulnerability"
}

cve-2024-6839

Vulnerability from cvelistv5

Published

2025-03-20 10:09

Modified

2025-03-20 18:35

Severity ?

4.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Summary

Improper Regex Path Matching in corydolphin/flask-cors

References

▼	URL	Tags
	https://huntr.com/bounties/403eb1fc-86f4-4820-8eba-0f3dfae9f2b4

Impacted products

▼	Vendor	Product
	corydolphin	corydolphin/flask-cors

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-6839",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-20T17:50:23.065543Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-20T18:35:47.526Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "corydolphin/flask-cors",
          "vendor": "corydolphin",
          "versions": [
            {
              "lessThanOrEqual": "latest",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "corydolphin/flask-cors version 4.0.1 contains an improper regex path matching vulnerability. The plugin prioritizes longer regex patterns over more specific ones when matching paths, which can lead to less restrictive CORS policies being applied to sensitive endpoints. This mismatch in regex pattern priority allows unauthorized cross-origin access to sensitive data or functionality, potentially exposing confidential information and increasing the risk of unauthorized actions by malicious actors."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-41",
              "description": "CWE-41 Improper Resolution of Path Equivalence",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-03-20T10:09:42.595Z",
        "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
        "shortName": "@huntr_ai"
      },
      "references": [
        {
          "url": "https://huntr.com/bounties/403eb1fc-86f4-4820-8eba-0f3dfae9f2b4"
        }
      ],
      "source": {
        "advisory": "403eb1fc-86f4-4820-8eba-0f3dfae9f2b4",
        "discovery": "EXTERNAL"
      },
      "title": "Improper Regex Path Matching in corydolphin/flask-cors"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
    "assignerShortName": "@huntr_ai",
    "cveId": "CVE-2024-6839",
    "datePublished": "2025-03-20T10:09:42.595Z",
    "dateReserved": "2024-07-17T17:48:41.089Z",
    "dateUpdated": "2025-03-20T18:35:47.526Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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