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CVE-2023-49799— Server-Side Request Forgery in nuxt-api-party

Quick assessment

Affected
johannschopplich nuxt-api-party
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.

nuxt-api-party是Johann Schopplich个人开发者的一个开源模块，用于代理API请求。 nuxt-api-party 0.21.3版本存在代码问题漏洞，该漏洞源于对URL 检测不严格，带有前导空格的绝对 URL 可以绕过此正则表达式，允许开发人员通过代理对 API 进行请求，而无需向客户端公开凭据。

CVSS 7.5 · High EPSS 0.82% · P54

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-49799

Vulnerability Information
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Vulnerability Title
Server-Side Request Forgery in nuxt-api-party
Source: CVE Program / CVE List V5
Vulnerability Description
`nuxt-api-party` is an open source module to proxy API requests. nuxt-api-party attempts to check if the user has passed an absolute URL to prevent the aforementioned attack. This has been recently changed to use the regular expression `^https?://`, however this regular expression can be bypassed by an absolute URL with leading whitespace. For example `\nhttps://whatever.com` which has a leading newline. According to the fetch specification, before a fetch is made the URL is normalized. "To normalize a byte sequence potentialValue, remove any leading and trailing HTTP whitespace bytes from potentialValue.". This means the final request will be normalized to `https://whatever.com` bypassing the check and nuxt-api-party will send a request outside of the whitelist. This could allow us to leak credentials or perform Server-Side Request Forgery (SSRF). This vulnerability has been addressed in version 0.22.1. Users are advised to upgrade. Users unable to upgrade should revert to the previous method of detecting absolute URLs.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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
nuxt-api-party 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
nuxt-api-party是Johann Schopplich个人开发者的一个开源模块，用于代理API请求。 nuxt-api-party 0.21.3版本存在代码问题漏洞，该漏洞源于对URL 检测不严格，带有前导空格的绝对 URL 可以绕过此正则表达式，允许开发人员通过代理对 API 进行请求，而无需向客户端公开凭据。
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
johannschopplich nuxt-api-party < 0.22.1 -

II. Public POCs for CVE-2023-49799

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 11839 chars
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III. Intelligence Information for CVE-2023-49799

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Vendor Advisories for CVE-2023-49799 (1)

Other References for CVE-2023-49799 (4)

IV. Related Vulnerabilities

Same product: nuxt-api-party
Same vendor: johannschopplich
Same weakness: CWE-918

V. Comments for CVE-2023-49799

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