Vulnerability-Lookup

GHSA-8HMM-4CRW-VM2C

Vulnerability from github – Published: 2025-08-21 14:54 – Updated: 2025-08-21 19:17

Summary

@musistudio/claude-code-router has improper CORS configuration

Details

Impact

Due to improper Cross-Origin Resource Sharing (CORS) configuration, there is a risk that user API Keys or equivalent credentials may be exposed to untrusted domains. Attackers could exploit this misconfiguration to steal credentials, abuse accounts, exhaust quotas, or access sensitive data.

Patches

The issue has been patched in v1.0.34.

Severity ?

0.0 (None)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N

8.1 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@musistudio/claude-code-router"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.34"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-57755"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-942"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-08-21T14:54:24Z",
    "nvd_published_at": "2025-08-21T17:15:31Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nDue to improper Cross-Origin Resource Sharing (CORS) configuration, there is a risk that user API Keys or equivalent credentials may be exposed to untrusted domains. Attackers could exploit this misconfiguration to steal credentials, abuse accounts, exhaust quotas, or access sensitive data.\n\n### Patches\nThe issue has been patched in v1.0.34.",
  "id": "GHSA-8hmm-4crw-vm2c",
  "modified": "2025-08-21T19:17:34Z",
  "published": "2025-08-21T14:54:24Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/musistudio/claude-code-router/security/advisories/GHSA-8hmm-4crw-vm2c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-57755"
    },
    {
      "type": "WEB",
      "url": "https://github.com/musistudio/claude-code-router/issues/549"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/musistudio/claude-code-router"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "@musistudio/claude-code-router has improper CORS configuration"
}

CVE-2025-57755 (GCVE-0-2025-57755)

Vulnerability from cvelistv5 – Published: 2025-08-21 16:21 – Updated: 2025-08-21 17:31

Title

claude-code-router CORS. misconfiguration

Summary

claude-code-router is a powerful tool to route Claude Code requests to different models and customize any request. Due to improper Cross-Origin Resource Sharing (CORS) configuration, there is a risk that user API Keys or equivalent credentials may be exposed to untrusted domains. Attackers could exploit this misconfiguration to steal credentials, abuse accounts, exhaust quotas, or access sensitive data. The issue has been patched in v1.0.34.

Severity ?

8.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-942 - Permissive Cross-domain Policy with Untrusted Domains

Assigner

GitHub_M

References

URL

Tags

https://github.com/musistudio/claude-code-router/…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	musistudio	claude-code-router	Affected: < 1.0.34

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-57755",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-21T17:23:11.558909Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-21T17:31:44.119Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "claude-code-router",
          "vendor": "musistudio",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.0.34"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "claude-code-router is a powerful tool to route Claude Code requests to different models and customize any request. Due to improper Cross-Origin Resource Sharing (CORS) configuration, there is a risk that user API Keys or equivalent credentials may be exposed to untrusted domains. Attackers could exploit this misconfiguration to steal credentials, abuse accounts, exhaust quotas, or access sensitive data. The issue has been patched in v1.0.34."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-942",
              "description": "CWE-942: Permissive Cross-domain Policy with Untrusted Domains",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-21T16:21:33.485Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/musistudio/claude-code-router/security/advisories/GHSA-8hmm-4crw-vm2c",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/musistudio/claude-code-router/security/advisories/GHSA-8hmm-4crw-vm2c"
        }
      ],
      "source": {
        "advisory": "GHSA-8hmm-4crw-vm2c",
        "discovery": "UNKNOWN"
      },
      "title": "claude-code-router CORS. misconfiguration"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-57755",
    "datePublished": "2025-08-21T16:21:33.485Z",
    "dateReserved": "2025-08-19T15:16:22.916Z",
    "dateUpdated": "2025-08-21T17:31:44.119Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted