Infinite loop Affecting react/http package, versions >=0.6.0, <1.11.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-REACTHTTP-20186897
- published28 Sept 2026
- disclosed17 Sept 2026
- creditUnknown
Introduced: 17 Sep 2026
NewCVE-2026-84997 (opens in a new tab)How to fix?
Upgrade react/http to version 1.11.1 or higher.
Overview
Affected versions of this package are vulnerable to Infinite loop via the ChunkedDecoder::handleData process. An attacker can cause the process to enter an infinite loop and exhaust CPU resources by sending a malformed HTTP message with Transfer-Encoding: chunked that exploits specific buffer handling logic. This can be triggered by a malicious client targeting a server or by a malicious server targeting a client. This is only exploitable if the application is not behind a reverse proxy that normalizes HTTP requests on the server side.