{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.15.2"
              },
              {
                "fixed": "1.18.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "582934382e4e0e0bcb679c628071a4203e93cf57"
            },
            {
              "fixed": "2d06f96e8602c2db13b65a26340ee4a1bbc0b61f"
            }
          ],
          "repo": "https://github.com/axios/axios",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-xj6q-8x83-jv6g"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-1321"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67314.json"
  },
  "details": "axios versions \u003e=1.15.2 and \u003c1.18.0 contain prototype-pollution read-side gadgets in Basic auth subfield handling (lib/adapters/http.js and lib/helpers/resolveConfig.js). When an application is already affected by a separate prototype-pollution primitive and makes an axios request with an own auth object that omits the username and/or password properties, axios reads the inherited Object.prototype.username and Object.prototype.password values and uses them to construct an outbound 'Authorization: Basic ...' header. axios itself does not pollute prototypes. The practical impact is outbound request tampering: an attacker who controls the polluted prototype values can inject attacker-chosen Basic auth credentials or replace an existing Authorization header. Credential disclosure is only possible under additional application-specific conditions.",
  "id": "CVE-2026-67314",
  "modified": "2026-08-03T03:30:36.218348295Z",
  "published": "2026-08-01T12:22:16.603Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67314.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/axios/axios/security/advisories/GHSA-xj6q-8x83-jv6g"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67314"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/axios-before-prototype-pollution-via-auth-subfields"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "axios before 1.18.0 Prototype Pollution via auth subfields"
}