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CVE-2026-67319— axios before 0.33.0 Prototype Pollution via nested option objects

Quick assessment

Affected
axios axios
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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团队开源的一款基于Promise(异步编程的一种解决方案)的HTTP客户端。 Axios 0.33.0之前版本和1.18.0版本之前的1.x版本存在输入验证错误漏洞，该漏洞源于在JavaScript进程的Object.prototype已被其他组件污染时，未检查嵌套请求选项对象（如auth和paramsSerializer）的自身属性而读取继承属性，可能导致静默注入Authorization: Basic标头或改变查询字符串序列化。

CVSS 6.3 · Medium EPSS 0.32% · P22

Possible ATT&CK Techniques 1 AI

T1408.002

Affected Version Matrix 4

VendorProduct Version RangeStatus
axios axios 0.8.0< 0.33.0 affected
0.33.0 unaffected
1.0.0< 1.18.0 affected
1.18.0 unaffected
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I. Basic Information for CVE-2026-67319

Vulnerability Information
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Vulnerability Title
axios before 0.33.0 Prototype Pollution via nested option objects
Source: CVE Program / CVE List V5
Vulnerability Description
axios before 0.33.0 (and 1.x before 1.18.0) can consume inherited properties from nested request option objects when the JavaScript process's Object.prototype has already been polluted by another component. While the top-level merged config uses a null prototype, nested plain objects such as auth and paramsSerializer are cloned into ordinary objects and read without own-property checks. When an application passes placeholder nested objects such as auth: {} or paramsSerializer: {}, inherited username/password values can cause silent injection of an Authorization: Basic header, and inherited encode/serialize values can alter query-string serialization (full serializer replacement requires a function-valued pollution primitive). This is exploitable only in the presence of pre-existing prototype pollution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5
Vulnerability Title
Axios 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Axios是Axios团队开源的一款基于Promise(异步编程的一种解决方案)的HTTP客户端。 Axios 0.33.0之前版本和1.18.0版本之前的1.x版本存在输入验证错误漏洞，该漏洞源于在JavaScript进程的Object.prototype已被其他组件污染时，未检查嵌套请求选项对象（如auth和paramsSerializer）的自身属性而读取继承属性，可能导致静默注入Authorization: Basic标头或改变查询字符串序列化。
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 0.8.0 ~ 0.33.0 -
axios axios 1.0.0 ~ 1.18.0 -

II. Public POCs for CVE-2026-67319

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III. Intelligence Information for CVE-2026-67319

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Vendor Advisories for CVE-2026-67319 (2)

Same Patch Batch · axios · 2026-08-01 · 10 CVEs total

CVE-2026-67320 8.3 HIGH axios before 0.33.0 Prototype Pollution via Node HTTP adapter
CVE-2026-67315 6.9 MEDIUM axios 0.31.0 before 0.33.0 and 1.15.0 before 1.18.0 NO_PROXY Bypass via 0.0.0.0
CVE-2026-67321 6.9 MEDIUM axios 0.31.1 before 0.33.0 and 1.15.1 before 1.18.0 Denial of Service via maxDepth bypass
CVE-2026-67318 6.3 MEDIUM axios 1.13.0 before 1.18.0 maxBodyLength Bypass via HTTP/2
CVE-2026-67312 6.3 MEDIUM axios 0.28.0 before 0.33.0 Denial of Service via formToJSON
CVE-2026-67316 6.3 MEDIUM axios before 1.18.0 Prototype Pollution via bodyless methods
CVE-2026-67313 6.3 MEDIUM axios 0.28.0 before 1.18.0 Denial of Service via formDataToJSON
CVE-2026-67317 6.3 MEDIUM axios 1.7.0 before 1.18.0 maxBodyLength Bypass via ReadableStream
CVE-2026-67314 6.3 MEDIUM axios before 1.18.0 Prototype Pollution via auth subfields

IV. Related Vulnerabilities

Same product: axios
Same vendor: axios
Same weakness: CWE-1321

V. Comments for CVE-2026-67319

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