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

Quick assessment

Affected
axios axios
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Axios是Axios开源的一款基于Promise（异步编程的一种解决方案）的HTTP客户端。 Axios 0.32.0之前版本和1.16.0之前版本存在代码问题漏洞，该漏洞源于未规范化IPv4映射的IPv6地址，可能导致NO_PROXY列表中的IPv4地址被绕过。

CVSS 8.6 · High EPSS 0.78% · P54

Affected Version Matrix 2

VendorProduct Version RangeStatus
axios axios >= 1.0.0, < 1.16.0 affected
< 0.32.0 affected
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I. Basic Information for CVE-2026-44492

Vulnerability Information
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Vulnerability Title
Axios: shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)
Source: CVE Program / CVE List V5
Vulnerability Description
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 NO_PROXY 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) still routes through the configured proxy. Node.js resolves these addresses to the underlying IPv4 host, so the request reaches the internal service via the proxy rather than being blocked. This vulnerability is fixed in 0.32.0 and 1.16.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Axios 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Axios是Axios开源的一款基于Promise（异步编程的一种解决方案）的HTTP客户端。 Axios 0.32.0之前版本和1.16.0之前版本存在代码问题漏洞，该漏洞源于未规范化IPv4映射的IPv6地址，可能导致NO_PROXY列表中的IPv4地址被绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
axios axios >= 1.0.0, < 1.16.0 -

II. Public POCs for CVE-2026-44492

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III. Intelligence Information for CVE-2026-44492

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Vendor Advisories for CVE-2026-44492 (1)

Same Patch Batch · axios · 2026-06-11 · 9 CVEs total

CVE-2026-44494 8.7 HIGH Axios: Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
CVE-2026-44487 8.2 HIGH Axios: Proxy-Authorization Credential Leak to Origin Server Across HTTP-to-HTTPS Redirect
CVE-2026-44488 7.5 HIGH Axios: Allocation of Resources Without Limits or Throttling in axios
CVE-2026-44496 7.5 HIGH Axios: Regular Expression Denial of Service (ReDoS) via Cookie Name Injection
CVE-2026-44486 7.5 HIGH Axios: Proxy-Authorization header leaks to redirect target when proxy is re-evaluated to d
CVE-2026-44495 7.0 HIGH Axios: Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Me
CVE-2026-44490 4.8 MEDIUM Axios: DoS & Header Injection via Prototype Pollution Read-Side Gadgets in axios merge fun
CVE-2026-44489 3.7 LOW Axios: Proxy-Authorization Header Injection via Prototype Pollution — Incomplete Null-Prot

IV. Related Vulnerabilities

Same product: axios
Same vendor: axios
Same weakness: CWE-918

V. Comments for CVE-2026-44492

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