{"id":"CVE-2026-101900","title":"Axios is a promise-based HTTP client for the browser and Node.js","summary":"Axios is a promise-based HTTP client for the browser and Node.js. From 1.12.0 until 1.20.0, ResolveConfig reads inherited Symbol.toStringTag, append, and getHeaders properties while resolving FormData headers. A separate same-process pro…","severity":"medium","cvss":6.9,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N","cwe":["CWE-74","CWE-693","CWE-1321","CWE-1287"],"vendor":"axios","product":"axios","affected":["axios >= 1.12.0, < 1.20.0"],"patched":["axios 1.20.0"],"published":"2026-09-28","updated":"2026-09-30","sourceUpdated":"2026-09-30T19:38:27.293","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-101900","references":[{"url":"https://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39a","label":"security-advisories@github.com"},{"url":"https://github.com/axios/axios/pull/11141","label":"security-advisories@github.com"},{"url":"https://github.com/axios/axios/releases/tag/v1.20.0","label":"security-advisories@github.com"},{"url":"https://github.com/axios/axios/security/advisories/GHSA-4hqw-qxg8-jxx2","label":"security-advisories@github.com"},{"url":"https://github.com/axios/axios/security/advisories/GHSA-4hqw-qxg8-jxx2","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101900.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-101900"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2542576"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-101900"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101900"},{"url":"https://github.com/advisories/GHSA-4hqw-qxg8-jxx2"},{"url":"https://access.redhat.com/errata/RHSA-2026:74871"},{"url":"https://access.redhat.com/errata/RHSA-2026:74869"},{"url":"https://access.redhat.com/errata/RHSA-2026:74872"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat","ghsa","npm"],"epss":0.00546,"epssPercentile":0.45603,"aliases":["GHSA-4hqw-qxg8-jxx2"],"ecosystem":"npm","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-28T17:48:51.957700Z"},"cvssSource":"cna","scores":{"cna":6.9,"vendor":6.5},"ingestedAt":"2026-09-28T18:17:54.305Z","slug":"CVE-2026-101900","body":"## Overview\n\nAxios is a promise-based HTTP client for the browser and Node.js. From 1.12.0 until 1.20.0, ResolveConfig reads inherited Symbol.toStringTag, append, and getHeaders properties while resolving FormData headers. A separate same-process prototype-pollution flaw supplies an array or non-plain class instance whose inherited properties make it appear FormData-like; plain objects are blocked. The inherited getHeaders function can return attacker-controlled headers that resolveConfig merges into a fetch adapter request. Attacker-controlled headers can alter authorization, cache, metadata-service, or application-specific request behavior. This issue is fixed in version 1.20.0.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-101900)\n\nAffected packages:\n\n- `axios >= 1.12.0, < 1.20.0`\n\nPatched in:\n\n- `axios 1.20.0`\n\nSource: https://github.com/advisories/GHSA-4hqw-qxg8-jxx2\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Hardened Images · no fix planned: Red Hat Hardened Images · updated 2026-09-28 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101900.json)\n- **RHSA-2026:74871** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-02 · [advisory](https://access.redhat.com/errata/RHSA-2026:74871)\n- **RHSA-2026:74869** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-02 · [advisory](https://access.redhat.com/errata/RHSA-2026:74869)\n- **RHSA-2026:74872** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-02 · [advisory](https://access.redhat.com/errata/RHSA-2026:74872)","depth":"twilight","depthScore":50,"depthScoreParts":{"impact":38,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}