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.
Published 2023-05-17 18:15:09
Updated 2023-05-25 17:03:21
Source GitHub, Inc.
View at NVD,
Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2023-26044

Probability of exploitation activity in the next 30 days EPSS Score History
~ 36 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-26044

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
GitHub, Inc.

CWE ids for CVE-2023-26044

  • The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
    Assigned by: (Secondary)

References for CVE-2023-26044

Products affected by CVE-2023-26044

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