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CVE-2026-42034— Axios: HTTP adapter streamed uploads bypass maxBodyLength when maxRedirects: 0

CVSS 5.3 · Medium EPSS 0.05% · P16
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I. Basic Information for CVE-2026-42034

Vulnerability Information
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Vulnerability Title
Axios: HTTP adapter streamed uploads bypass maxBodyLength when maxRedirects: 0
Source: NVD (National Vulnerability Database)
Vulnerability Description
Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, for stream request bodies, maxBodyLength is bypassed when maxRedirects is set to 0 (native http/https transport path). Oversized streamed uploads are sent fully even when the caller sets strict body limits. This vulnerability is fixed in 1.15.1 and 0.31.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
Axios 安全漏洞
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 1.15.1之前版本和0.31.1之前版本存在安全漏洞，该漏洞源于当maxRedirects设置为0时，流请求正文的maxBodyLength被绕过，导致超大数据流上传完全发送。
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

VendorProductAffected VersionsCPESubscribe
axiosaxios >= 1.0.0, < 1.15.1 -

II. Public POCs for CVE-2026-42034

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III. Intelligence Information for CVE-2026-42034

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Same Patch Batch · axios · 2026-04-24 · 12 CVEs total

CVE-2026-420337.4 HIGHAxios: Prototype Pollution Gadgets - Response Tampering, Data Exfiltration, and Request Hi
CVE-2026-420357.4 HIGHAxios: Header Injection via Prototype Pollution
CVE-2026-420437.2 HIGHAxios: Incomplete Fix for CVE-2025-62718 — NO_PROXY Protection Bypassed via RFC 1122 Loop
CVE-2026-420386.8 MEDIUMAxios: no_proxy bypass via IP alias allows SSRF
CVE-2026-420446.5 MEDIUMAxios: Invisible JSON Response Tampering via Prototype Pollution Gadget in `parseReviver`
CVE-2026-420425.4 MEDIUMAxios: XSRF Token Cross-Origin Leakage via Prototype Pollution Gadget in `withXSRFToken` B
CVE-2026-420375.3 MEDIUMAxios: CRLF Injection in multipart/form-data body via unsanitized blob.type in formDataToS
CVE-2026-420365.3 MEDIUMAxios: HTTP adapter streamed responses bypass maxContentLength
CVE-2026-420414.8 MEDIUMAxios: Authentication Bypass via Prototype Pollution Gadget in `validateStatus` Merge Stra
CVE-2026-420403.7 LOWAxios: Null Byte Injection via Reverse-Encoding in AxiosURLSearchParams
CVE-2026-42039Axios: unbounded recursion in toFormData causes DoS via deeply nested request data

IV. Related Vulnerabilities

Same product: axios
Same vendor: axios
Same weakness: CWE-770

V. Comments for CVE-2026-42034

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