Summary 

• CVE-2026-40175

Title: Axios has Unrestricted Cloud Metadata Exfiltration via Header Injection Chain

Description

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.

CWE-113: : Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

CWE-444: : Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

CWE-918: : Server-Side Request Forgery (SSRF)

Base Score:  4.8 MEDIUM

Vector:  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

• CVE-2025-62718

Title: Axios has a NO_PROXY Hostname Normalization Bypass that Leads to SSRF

Description

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly handle hostname normalization when checking NO_PROXY rules. Requests to loopback addresses like localhost. (with a trailing dot) or [::1] (IPv6 literal) skip NO_PROXY matching and go through the configured proxy. This goes against what developers expect and lets attackers force requests through a proxy, even if NO_PROXY is set up to protect loopback or internal services. This issue leads to the possibility of proxy bypass and SSRF vulnerabilities allowing attackers to reach sensitive loopback or internal services despite the configured protections. This vulnerability is fixed in 1.15.0 and 0.31.0.

CWE-441: : Unintended Proxy or Intermediary ('Confused Deputy')

CWE-918: : Server-Side Request Forgery (SSRF)

Base Score:  9.9 CRITICAL

Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L

• CVE-2026-42043

Title: Axios: Incomplete Fix for CVE-2025-62718 — NO_PROXY Protection Bypassed via RFC 1122 Loopback Subnet (127.0.0.0/8) in Axios 1.15.0

Description

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, an attacker who can influence the target URL of an Axios request can use any address in the 127.0.0.0/8 range (other than 127.0.0.1) to completely bypass the NO_PROXY protection. This vulnerability is due to an incomplete for CVE-2025-62718, This vulnerability is fixed in 1.15.1 and 0.31.1.

CWE-183: : Permissive List of Allowed Inputs

CWE-441: : Unintended Proxy or Intermediary ('Confused Deputy')

CWE-918: : Server-Side Request Forgery (SSRF)

Base Score:  7.2    HIGH

Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

• CVE-2026-42044

Title: Axios: Invisible JSON Response Tampering via Prototype Pollution Gadget in `parseReviver`

Description

Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.15.2, he 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 surgical, invisible modification of all JSON API responses — including privilege escalation, balance manipulation, and authorization bypass. The default transformResponse function at lib/defaults/index.js:124 calls JSON.parse(data, this.parseReviver), where this is the merged config object. Because parseReviver is not present in Axios defaults, not validated by assertOptions, and not subject to any constraints, a polluted Object.prototype.parseReviver function is called for every key-value pair in every JSON response, allowing the attacker to selectively modify individual values while leaving the rest of the response intact. This vulnerability is fixed in 1.15.2.

CWE-915: : Improperly Controlled Modification of Dynamically-Determined Object Attributes

CWE-1321: : Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Base Score:  6.5 MEDIUM

Vector:  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

Products Affected

• No Brocade products are affected

Products Not Affected

• Brocade Fabric OS
  [VEX Justification: Component_not_present]
• Brocade SANnav
  [VEX Justification: Vulnerable_code_not_in_execute_path]
• Brocade ASCG
  [VEX Justification: Component_not_present]

Solution

• While not exploitable, security update provided in Brocade SANnav 3.0.0a and 3.0.1a

Revision History

Disclaimer

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