{"id":"DEBIAN-CVE-2026-101908","details":"Axios is a promise-based HTTP client for the browser and Node.js. From 1.7.0 until 1.20.0, the fetch adapter constructs a Request with sanitized resolvedOptions but then calls fetch with the original fetchOptions. A separate same-process prototype-pollution flaw populates Object.prototype.headers so fetchOptions.headers resolves through inheritance. The inherited fetchOptions.headers value overrides the sanitized Request headers through the second argument to fetch after Request construction. Attacker-controlled request headers can alter authorization, caching, metadata-service access, or application-specific behavior. This issue is fixed in version 1.20.0.","modified":"2026-09-29T09:00:10.572279476Z","published":"2026-09-28T18:17:19.440Z","upstream":["CVE-2026-101908"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-101908"}],"affected":[{"package":{"name":"node-axios","ecosystem":"Debian:12","purl":"pkg:deb/debian/node-axios?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.11.0+dfsg-1","1.12.1+dfsg-1","1.13.1+dfsg-1","1.13.2+dfsg-1","1.14.0+dfsg-1","1.15.0-1","1.15.2-1","1.16.0-1","1.18.0-1","1.19.0-1","1.2.1+dfsg-1","1.2.1+dfsg-1+deb12u1","1.20.0-1","1.5.1+dfsg-1","1.6.2+dfsg-1","1.6.8+dfsg-1","1.6.8+dfsg-2","1.7.3+dfsg-1","1.7.4+dfsg-1","1.7.7+dfsg-1","1.7.9+dfsg-1","1.8.4+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-101908.json"}},{"package":{"name":"node-axios","ecosystem":"Debian:13","purl":"pkg:deb/debian/node-axios?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.11.0+dfsg-1","1.12.1+dfsg-1","1.13.1+dfsg-1","1.13.2+dfsg-1","1.14.0+dfsg-1","1.15.0-1","1.15.2-1","1.16.0-1","1.18.0-1","1.19.0-1","1.20.0-1","1.8.4+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-101908.json"}},{"package":{"name":"node-axios","ecosystem":"Debian:14","purl":"pkg:deb/debian/node-axios?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.0-1"}]}],"versions":["1.11.0+dfsg-1","1.12.1+dfsg-1","1.13.1+dfsg-1","1.13.2+dfsg-1","1.14.0+dfsg-1","1.15.0-1","1.15.2-1","1.16.0-1","1.18.0-1","1.19.0-1","1.8.4+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-101908.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}