Axios is a promise based HTTP client for the browser and Node.js. From version 1.0.0 to before version 1.15.2, fFive config properties (auth, baseURL, socketPath, beforeRedirect, and insecureHTTPParser) in the HTTP adapter are read via direct property access without hasOwnProperty guards, making them exploitable as prototype pollution gadgets. When Object.prototype is polluted by another dependency in the same process, axios silently picks up these polluted values on every outbound HTTP request. This issue has been patched in version 1.15.2.
https://www.securityweek.com/atlassian-splunk-patch-critical-vulnerabilities/
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42264.json
https://github.com/axios/axios/security/advisories/GHSA-q8qp-cvcw-x6jj
https://github.com/axios/axios/releases/tag/v1.15.2
https://github.com/axios/axios/pull/10779
https://github.com/axios/axios/commit/47915144662f2733e6c051bdcb895a8c8f0586aa
https://bugzilla.redhat.com/show_bug.cgi?id=2467927
https://access.redhat.com/security/cve/CVE-2026-42264
https://access.redhat.com/errata/RHSA-2026:37297
https://access.redhat.com/errata/RHSA-2026:37288
https://access.redhat.com/errata/RHSA-2026:37287
https://access.redhat.com/errata/RHSA-2026:36207
https://access.redhat.com/errata/RHSA-2026:33173