{"id":"CVE-2026-101902","summary":"Axios: Prototype-Pollution Gadget in the Default Instance Allows Inherited Object.prototype.method to Override HTTP Method","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.","aliases":["GHSA-9fr6-4gfg-395g"],"modified":"2026-09-30T03:47:03.672198545Z","published":"2026-09-28T17:22:49.113Z","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"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/axios/axios","events":[{"introduced":"484aa4fe6addccbd32206a31eb3d2d000843066e"},{"introduced":"bc733fec78326609e751187c9d453cee9bf1993a"},{"fixed":"84a9f3b9a4f3244b8c8e818f557d64c7b964fb25"},{"fixed":"ee1aa2654766c70215c5ef40991dc1079aa261da"},{"fixed":"d19040bda7a8be2f82c3c6e1a5bc03917daee39a"}],"database_specific":{"extracted_events":[{"introduced":"1.0.0"},{"fixed":"1.20.0"},{"introduced":"0.27.2"},{"fixed":"0.34.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v1.19.0","v0.33.0","v1.18.1","v1.18.0","v1.17.0","v1.16.1","v0.32.0","v0.31.1","v1.16.0","v1.15.2","v1.15.1","v0.31.0","v1.15.0","v1.14.0","v1.13.6","v0.30.3","v0.30.2","v1.13.5","v1.13.4","v1.13.3","v1.13.2","v1.13.1","v1.13.0","v0.30.1","v1.12.2","v1.12.1","v1.12.0","v0.30.0","v1.11.0","v1.10.0","v1.9.0","v1.8.4","v1.8.3","v1.8.2","v1.8.1","v1.8.0","v0.29.0","v1.7.9","v1.7.8","v1.7.7","v1.7.6","v1.7.5","v1.7.4","v1.7.3","v1.7.2","v0.28.1","v1.7.1","v1.7.0","v1.7.0-beta.2","v1.7.0-beta.1","v1.7.0-beta.0","v1.6.8","v1.6.7","v0.28.0","v1.6.6","v1.6.5","v1.6.4","v1.6.3","v1.6.2","v1.6.1","v1.6.0","v1.5.1","v1.5.0","v1.4.0","v1.3.6","v1.3.5","v1.3.4","v1.3.3","v1.3.2","v1.3.1","v1.3.0","v1.2.6","v1.2.5","v1.2.4","v1.2.3","v1.2.2","1.2.2","v1.2.1","v1.2.0","1.2.0-alpha.1","v1.1.3","v1.1.2","v1.1.1","v1.1.0","v1.0.0","v0.27.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-101902.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","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"}]}