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.
{
"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"
}{
"extracted_events": [
{
"range": [
{
"introduced": "1.0.0"
},
{
"fixed": "1.20.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "0.27.2"
},
{
"fixed": "0.34.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "d19040bda7a8be2f82c3c6e1a5bc03917daee39a"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v0.34.0",
"range": [
{
"fixed": "ee1aa2654766c70215c5ef40991dc1079aa261da"
}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "v1.20.0",
"range": [
{
"fixed": "84a9f3b9a4f3244b8c8e818f557d64c7b964fb25"
}
],
"source": "REFERENCES_TAG"
}
]
}