CVE-2026-44487

Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios’s Node.js HTTP adapter may forward a Proxy-Authorization header to a redirected origin during specific proxy-to-direct redirect flows. This affects Node.js usage, where an initial HTTP request is...

CVE-2026-44494 Axios: Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`

Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.16.0, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into a full Man-in-the-Middle MIT...

CVE-2026-44494 Axios: Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`

Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.16.0, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into a full Man-in-the-Middle MIT...

EUVD-2026-36257

Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.16.0, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into a full Man-in-the-Middle MIT...

CVE-2026-44494

Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.16.0, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into a full Man-in-the-Middle MIT...

CVE-2026-44494 Axios: Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`

Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.16.0, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into a full Man-in-the-Middle MIT...

CVE-2026-44494

Axios

CVE-2026-44489 Axios: Proxy-Authorization Header Injection via Prototype Pollution — Incomplete Null-Prototype Fix

Axios is a promise based HTTP client for the browser and Node.js. From 1.15.2 to before 1.16.0, nested objects created by utils.merge e.g., config.proxy are still constructed as plain with Object.prototype in their chain. The setProxy function at lib/adapters/http.js:209-223 reads proxy.username,...

CVE-2026-44489 Axios: Proxy-Authorization Header Injection via Prototype Pollution — Incomplete Null-Prototype Fix

Axios is a promise based HTTP client for the browser and Node.js. From 1.15.2 to before 1.16.0, nested objects created by utils.merge e.g., config.proxy are still constructed as plain with Object.prototype in their chain. The setProxy function at lib/adapters/http.js:209-223 reads proxy.username,...

EUVD-2026-36256

Axios is a promise based HTTP client for the browser and Node.js. From 1.15.2 to before 1.16.0, nested objects created by utils.merge e.g., config.proxy are still constructed as plain with Object.prototype in their chain. The setProxy function at lib/adapters/http.js:209-223 reads proxy.username,...

CVE-2026-44489 Axios: Proxy-Authorization Header Injection via Prototype Pollution — Incomplete Null-Prototype Fix

Axios is a promise based HTTP client for the browser and Node.js. From 1.15.2 to before 1.16.0, nested objects created by utils.merge e.g., config.proxy are still constructed as plain with Object.prototype in their chain. The setProxy function at lib/adapters/http.js:209-223 reads proxy.username,...

CVE-2026-44489

Axios is a promise based HTTP client for the browser and Node.js. From 1.15.2 to before 1.16.0, nested objects created by utils.merge e.g., config.proxy are still constructed as plain with Object.prototype in their chain. The setProxy function at lib/adapters/http.js:209-223 reads proxy.username,...

CVE-2026-44489

Axios is a promise based HTTP client for the browser and Node.js. From 1.15.2 to before 1.16.0, nested objects created by utils.merge e.g., config.proxy are still constructed as plain with Object.prototype in their chain. The setProxy function at lib/adapters/http.js:209-223 reads proxy.username,...

CVE-2026-44489

Axios version range 1.15.2–1.15.x is vulnerable to a header injection via the Proxy-Authorization header. The root cause is that nested objects created by utils.merge() (e.g., config.proxy) retain plain {} with Object.prototype in their chain, and setProxy() in lib/adapters/http.js (lines ~209–22...

CVE-2026-44492

CVE-2026-44492 affects Axios where IPv4-mapped IPv6 addresses were not normalised before versions 0.32.0 and 1.16.0, causing NO_PROXY bypass for addresses like 127.0.0.1 or 169.254.169.254 and allowing proxy routing to reach internal services. The connected documents confirm the issue and state i...

CVE-2026-44492 Axios: shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)

Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios does not normalise IPv4-mapped IPv6 addresses. When NOPROXY lists an IPv4 address such as 127.0.0.1 or 169.254.169.254, a request URL using the IPv4-mapped IPv6 form ::ffff:7f00:1, ::ffff:a9fe:a9fe...

EUVD-2026-36255

Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios does not normalise IPv4-mapped IPv6 addresses. When NOPROXY lists an IPv4 address such as 127.0.0.1 or 169.254.169.254, a request URL using the IPv4-mapped IPv6 form ::ffff:7f00:1, ::ffff:a9fe:a9fe...

CVE-2026-44492 Axios: shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)

Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios does not normalise IPv4-mapped IPv6 addresses. When NOPROXY lists an IPv4 address such as 127.0.0.1 or 169.254.169.254, a request URL using the IPv4-mapped IPv6 form ::ffff:7f00:1, ::ffff:a9fe:a9fe...

CVE-2026-44492

Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios does not normalise IPv4-mapped IPv6 addresses. When NOPROXY lists an IPv4 address such as 127.0.0.1 or 169.254.169.254, a request URL using the IPv4-mapped IPv6 form ::ffff:7f00:1, ::ffff:a9fe:a9fe...

CVE-2026-44492 Axios: shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)

Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios does not normalise IPv4-mapped IPv6 addresses. When NOPROXY lists an IPv4 address such as 127.0.0.1 or 169.254.169.254, a request URL using the IPv4-mapped IPv6 form ::ffff:7f00:1, ::ffff:a9fe:a9fe...