{"id":"CVE-2026-25639","summary":"Axios affected by Denial of Service via __proto__ Key in mergeConfig","details":"Axios is a promise based HTTP client for the browser and Node.js. Prior to versions 0.30.3 and 1.13.5, the mergeConfig function in axios crashes with a TypeError when processing configuration objects containing __proto__ as an own property. An attacker can trigger this by providing a malicious configuration object created via JSON.parse(), causing complete denial of service. This vulnerability is fixed in versions 0.30.3 and 1.13.5.","aliases":["GHSA-43fc-jf86-j433"],"modified":"2026-05-23T03:56:23.984777651Z","published":"2026-02-09T20:11:22.374Z","related":["CGA-7wf9-6qpg-mv6m"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25639.json","cwe_ids":["CWE-754"],"cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/axios/axios/releases/tag/v0.30.3"},{"type":"WEB","url":"https://github.com/axios/axios/releases/tag/v1.13.5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25639.json"},{"type":"ADVISORY","url":"https://github.com/axios/axios/security/advisories/GHSA-43fc-jf86-j433"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25639"},{"type":"FIX","url":"https://github.com/axios/axios/commit/28c721588c7a77e7503d0a434e016f852c597b57"},{"type":"FIX","url":"https://github.com/axios/axios/commit/d7ff1409c68168d3057fc3891f911b2b92616f9e"},{"type":"FIX","url":"https://github.com/axios/axios/pull/7369"},{"type":"FIX","url":"https://github.com/axios/axios/pull/7388"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/axios/axios","events":[{"introduced":"484aa4fe6addccbd32206a31eb3d2d000843066e"},{"fixed":"f53bcf6c3747652c9d3811dc0bbcd3674e21567a"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-25639.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}