Multiple Axios Vulnerabilities Discovered, Leading to Potential Server-Side Request Forgery and Header Injection

Multiple Axios Vulnerabilities Expose Internal Services to Attacks

Recent security advisories have highlighted several vulnerabilities in Axios, a popular JavaScript library used for making HTTP requests. These vulnerabilities could potentially allow attackers to bypass proxy restrictions, inject malicious values into HTTP headers, and exploit internal services. The issues were reported by various researchers, including Ameer Assadi, Sachin Patil, and Amol Patil.

One significant vulnerability, identified as CVE-2025-62718, involves improper handling of certain hostnames when applying NO_PROXY rules. This flaw could enable an attacker to bypass proxy restrictions, leading to server-side request forgery (SSRF) and unauthorized access to internal services.

Another critical issue, CVE-2026-40175, pertains to the inadequate protection of specific HTTP header values from prototype pollution. An attacker could exploit this vulnerability to inject malicious values into outbound requests, resulting in HTTP header injection, which could compromise the integrity of the application.

Additionally, researchers Sachin Patil and Amol Patil discovered another vulnerability, CVE-2026-42043, where Axios failed to properly apply NO_PROXY rules to certain loopback addresses. This oversight could also lead to SSRF, allowing attackers to access internal services that should be protected by proxy configurations.

Further complicating the security landscape, CVE-2026-42044 was identified, which affects JSON response processing. This vulnerability could allow attackers to modify values in application responses, potentially leading to authorization bypass or privilege escalation. This issue specifically impacts Ubuntu 26.04 LTS.

Lastly, CVE-2026-42264 highlights a flaw in the protection of certain request configuration options from prototype pollution. This vulnerability could enable attackers to modify outbound HTTP requests, bypassing security restrictions. It affects both Ubuntu 24.04 LTS and Ubuntu 26.04 LTS.

Organizations using Axios, particularly those on the affected Ubuntu versions, should prioritize applying security patches and updates to mitigate these vulnerabilities. For detailed information on the vulnerabilities and recommended actions, refer to the official advisory from Ubuntu Security Notices.