CVE-2026-92284
Received Received - Intake

Memory Exhaustion via Unbounded Request Body in Caddy

Publication date: 2026-09-23

Last updated on: 2026-09-23

Assigner: GitHub, Inc.

Description
Caddy is an extensible server platform that uses TLS by default. In version 2.11.3 and earlier, in modules/caddyhttp/replacer.go, resolving http.request.body reads the complete request body with an unbounded io.Copy before request-body middleware limits apply, allowing memory exhaustion and process termination.

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Meta Information

Published
2026-09-23
Last Modified
2026-09-23
Generated
2026-09-24
AI Q&A
2026-09-23
EPSS Evaluated
N/A
NVD
CVE-2026-92284
EUVD
EUVD-2026-85514

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
caddy_project caddy to 2.11.4 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

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Executive Summary

CVE-2026-92284 is a memory exhaustion vulnerability in Caddy server versions 2.11.3 and earlier. It occurs in the HTTP request body handling where the server reads the entire request body without limits before middleware can restrict it. This allows attackers to send large requests causing memory exhaustion and potential process termination.

Impact Analysis

This vulnerability can lead to denial-of-service conditions where the Caddy server crashes due to excessive memory usage. It may disrupt services relying on the server, cause downtime, and require manual intervention to restart the process.

Mitigation Strategies

Upgrade Caddy to version 2.11.4 or later to address the memory exhaustion issue in http.request.body handling.

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