{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.0.0"
              },
              {
                "fixed": "1.20.0"
              },
              {
                "introduced": "0.27.2"
              },
              {
                "fixed": "0.34.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "484aa4fe6addccbd32206a31eb3d2d000843066e"
            },
            {
              "introduced": "bc733fec78326609e751187c9d453cee9bf1993a"
            },
            {
              "fixed": "84a9f3b9a4f3244b8c8e818f557d64c7b964fb25"
            },
            {
              "fixed": "ee1aa2654766c70215c5ef40991dc1079aa261da"
            },
            {
              "fixed": "d19040bda7a8be2f82c3c6e1a5bc03917daee39a"
            }
          ],
          "repo": "https://github.com/axios/axios",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-9fr6-4gfg-395g"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-1321"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101902.json"
  },
  "details": "Axios is a promise-based HTTP client for the browser and Node.js. From 0.27.2 until 0.34.0 and 1.20.0, Axios default-instance requests that omit an explicit method can read an inherited method value from Object.prototype. If another vulnerability in the same process pollutes Object.prototype.method, calls such as axios.request({ url }) and axios({ url }) can send a state-changing HTTP method instead of the expected default GET. Axios does not create the prototype pollution source. This is a read-side gadget in axios request dispatch. This issue is fixed in version 0.34.0 and 1.20.0.",
  "id": "CVE-2026-101902",
  "modified": "2026-09-30T03:30:22.529325526Z",
  "published": "2026-09-28T17:22:49.113Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/axios/axios/releases/tag/v0.34.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/axios/axios/releases/tag/v1.20.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101902.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/axios/axios/security/advisories/GHSA-9fr6-4gfg-395g"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101902"
    },
    {
      "type": "FIX",
      "url": "https://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39a"
    },
    {
      "type": "FIX",
      "url": "https://github.com/axios/axios/pull/11141"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Axios: Prototype-Pollution Gadget in the Default Instance Allows Inherited Object.prototype.method to Override HTTP Method"
}