{"id":"CVE-2026-101904","published":"2026-09-28T18:17:18.740","lastModified":"2026-09-28T18:17:18.740","description":"Axios is a promise-based HTTP client for the browser and Node.js. From 1.0.0 until 1.20.0, the dispatchRequest function normalizes inherited Object.prototype.headers from a replacement request configuration. A separate same-process prototype-pollution flaw sets Object.prototype.headers, and trusted request interceptors return a new ordinary configuration without an own headers property. After the interceptor chain, dispatchRequest resolves the inherited headers during normalization. Downstream request processing can observe attacker-controlled headers, including authorization-related values. This issue is fixed in version 1.20.0.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-74","CWE-1321"],"vendors":[],"products":[],"references":[{"url":"https://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39a","tags":[]},{"url":"https://github.com/axios/axios/pull/11141","tags":[]},{"url":"https://github.com/axios/axios/releases/tag/v1.20.0","tags":[]},{"url":"https://github.com/axios/axios/security/advisories/GHSA-j8rh-479h-cp32","tags":[]},{"url":"https://github.com/axios/axios/security/advisories/GHSA-j8rh-479h-cp32","tags":[]}],"exploitRefs":[{"url":"https://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39a","tags":[]},{"url":"https://github.com/axios/axios/pull/11141","tags":[]},{"url":"https://github.com/axios/axios/releases/tag/v1.20.0","tags":[]},{"url":"https://github.com/axios/axios/security/advisories/GHSA-j8rh-479h-cp32","tags":[]},{"url":"https://github.com/axios/axios/security/advisories/GHSA-j8rh-479h-cp32","tags":[]}],"hasPoc":true,"ai":null}