CVE-2021-3749— Inefficient Regular Expression Complexity in axios/axios
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I. Basic Information for CVE-2021-3749
Vulnerability Information
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Vulnerability Title
Inefficient Regular Expression Complexity in axios/axios
Source: NVD (National Vulnerability Database)
Vulnerability Description
axios is vulnerable to Inefficient Regular Expression Complexity
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1333
Source: NVD (National Vulnerability Database)
Vulnerability Title
Axios 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Axios是一款基于Promise（异步编程的一种解决方案）的HTTP客户端。 Axios 存在安全漏洞，该漏洞源于在 axios 包中发现了一个 ReDoS（正则表达式拒绝服务）缺陷。攻击者可利用该漏洞为修剪功能提供精心设计的输入导致应用程序消耗过多的 CPU。
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/axios | unspecified ~ 0.21.1 | - |
II. Public POCs for CVE-2021-3749
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Axios Redos (CVE-2021-3749) proof of concept | https://github.com/T-Guerrero/axios-redos | POC Details |
AI-Generated POCPremium
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- https://huntr.dev/bounties/1e8f07fc-c384-4ff9-8498-0690de2e8c31x_refsource_CONFIRM
- https://www.oracle.com/security-alerts/cpujul2022.htmlx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-3749
IV. Related Vulnerabilities
Same vendor: axios
- CVE-2026-42264
Axios: Prototype pollution read-side gadgets in HTTP adapter - CVE-2026-42042
Axios: XSRF Token Cross-Origin Leakage via Prototype Polluti - CVE-2026-42039
Axios: unbounded recursion in toFormData causes DoS via deep - CVE-2026-42036
Axios: HTTP adapter streamed responses bypass maxContentLeng - CVE-2026-42034
Axios: HTTP adapter streamed uploads bypass maxBodyLength wh
Same weakness: CWE-1333
- CVE-2026-33079
Mistune ReDoS in LINK_TITLE_RE allows denial of service with - CVE-2026-41040
GROWI 安全漏洞 - CVE-2026-40319
Giskard has a Regular Expression Denial of Service (ReDoS) i - CVE-2026-5986
Zod jsVideoUrlParser util.js getTime redos - CVE-2026-35041
ReDoS in fast-jwt when using RegExp in allowed* leading to C
V. Comments for CVE-2021-3749
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