CVE-2026-40175 — Axios has Unrestricted Cloud Metadata Exfiltration via Header Injection Chain

Affected: axios, Siemens gWAP, Red Hat Ansible Automation Platform 2.6 for RHEL 9, Red Hat Streams for Apache Kafka 3.2.0, Red Hat multicluster engine for Kubernetes 2.1, Red Hat multicluster engine for Kubernetes 2.6, Red Hat multicluster engine for Kubernetes 2.8, Red Hat multicluster engine for Kubernetes 2.9, Red Hat Network Observability (NETOBSERV) 1.11.0, Red Hat Advanced Cluster Management for Kubernetes 2.14 and 56 more

Axios is a promise based HTTP client for the browser and Node.js. Versions prior to 1.15.0 and 0.3.1 are vulnerable to a specific gadget-style attack chain in which prototype pollution in a third-party dependency may be leveraged to inject unsanitized header values into outbound requests. This vulnerability is fixed in 1.15.0 and 0.3.1.

USN-8638-1 — node-axios vulnerabilities

Affected: Ubuntu:Pro:20.04:LTS: node-axios, Ubuntu:Pro:22.04:LTS: node-axios, Ubuntu:Pro:24.04:LTS: node-axios, Ubuntu:Pro:26.04:LTS: node-axios

Ameer Assadi discovered that Axios did not properly handle certain hostnames when applying NO_PROXY rules. An attacker could possibly use this issue to bypass proxy restrictions and access internal services, resulting in server-side request forgery. (CVE-2025-62718)

It was discovered that Axios did not properly protect certain HTTP header values from prototype pollution. An attacker could possibly use this issue to inject malicious values into outbound requests, resulting in HTTP header injection. (CVE-2026-40175)

Sachin Patil and Amol Patil discovered that Axios did not properly apply NO_PROXY rules to certain loopback addresses. An attacker could possibly use this issue to bypass proxy restrictions and access internal services, resulting in server-side request forgery. (CVE-2026-42043)

Yu Bao discovered that Axios did not properly protect JSON response processing from prototype pollution. An attacker could possibly use this issue to modify values in application responses, resulting in authorization bypass or privilege escalation. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-42044)

It was discovered that Axios did not properly protect certain request configuration options from prototype pollution. An attacker could possibly use this issue to modify outbound HTTP requests, resulting in security restrictions being bypassed. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-42264)

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CVE-2026-40175 — Axios has Unrestricted Cloud Metadata Exfiltration via Header Injection Chain

USN-8638-1 — node-axios vulnerabilities