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CVE-2023-26044— ReactPHP's HTTP server continues parsing unused multipart parts after reaching limits

Quick assessment

Affected
reactphp http
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.

ReactPHP HTTP是ReactPHP开源的一个 ReactPHP 的事件驱动、流式 HTTP 客户端和服务器实现。 ReactPHP HTTP 0.8.0到1.9.0版本存在资源管理错误漏洞，该漏洞源于在处理大型 HTTP 请求主体时可能导致高 CPU 负载。

CVSS 5.3 · Medium EPSS 0.68% · P51
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I. Basic Information for CVE-2023-26044

Vulnerability Information
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Vulnerability Title
ReactPHP's HTTP server continues parsing unused multipart parts after reaching limits
Source: CVE Program / CVE List V5
Vulnerability Description
react/http is an event-driven, streaming HTTP client and server implementation for ReactPHP. Previous versions of ReactPHP's HTTP server component contain a potential DoS vulnerability that can cause high CPU load when processing large HTTP request bodies. This vulnerability has little to no impact on the default configuration, but can be exploited when explicitly using the RequestBodyBufferMiddleware with very large settings. This might lead to consuming large amounts of CPU time for processing requests and significantly delay or slow down the processing of legitimate user requests. This issue has been addressed in release 1.9.0. Users are advised to upgrade. Users unable to upgrade may keep the request body limited using RequestBodyBufferMiddleware with a sensible value which should mitigate the issue. An infrastructure or DevOps workaround could be to place a reverse proxy in front of the ReactPHP HTTP server to filter out any excessive HTTP request bodies.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
ReactPHP HTTP 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ReactPHP HTTP是ReactPHP开源的一个 ReactPHP 的事件驱动、流式 HTTP 客户端和服务器实现。 ReactPHP HTTP 0.8.0到1.9.0版本存在资源管理错误漏洞，该漏洞源于在处理大型 HTTP 请求主体时可能导致高 CPU 负载。
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
reactphp http >= 0.8.0, < 1.9.0 -

II. Public POCs for CVE-2023-26044

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III. Intelligence Information for CVE-2023-26044

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Patches & Fixes for CVE-2023-26044 (1)

Vendor Advisories for CVE-2023-26044 (1)

IV. Related Vulnerabilities

Same product: http
Same vendor: reactphp
Same weakness: CWE-400

V. Comments for CVE-2023-26044

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