{"id":"CVE-2026-25639","aliases":["GHSA-43fc-jf86-j433"],"url":"https://o3.security/vulnerability/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.","published":"2026-02-09T20:11:22.374Z","modified":"2026-08-07T11:50:38.393329353Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"axios","fixedVersion":"1.13.5"},{"ecosystem":"npm","name":"axios","fixedVersion":"0.30.3"}],"fix":{"url":"https://github.com/axios/axios/commit/28c721588c7a77e7503d0a434e016f852c597b57","label":"axios/axios@28c7215"},"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":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25639.json"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:10184"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:11414"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:13542"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:13548"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:19712"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:25041"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:2694"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:3087"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:3105"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:3106"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:3107"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:3109"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:36882"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:41064"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:4942"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:5142"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:5168"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:5174"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:5633"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:5636"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:5665"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:5807"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6170"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6174"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6192"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6277"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6308"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6309"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6428"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6497"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6567"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6568"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6802"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:7249"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:8218"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:8229"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:8499"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:8500"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:8501"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:9848"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-25639"},{"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":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2438237"},{"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:50:38.393329353Z"}}